.
           

 

Now you can listen to the Technet that best suites your needs!

To play a reel on this page:
1. Just click on the bold, underlined link reel, which is always an orange box in the Audio File column.
(i.e.080106tech-001 is the first entry in our chart) This means: "This is the January 6, 2008 show, reel number 1" Just click the link!

2. To click reel 2 of the January 6, 2008 show, move down to the next orange box in the same Audio File column which is:
080106tech-001 (which is reel 2 of the January 6, 2008 show).

Don't forget to use your player's EQ to taylor the sound!

To find a topic: Right now I have the "poor man's way" to search for topics. In this browser window, go to the Edit Menu
then Find On This Page (CTL-F). A dialog box appears- just type in a term that matches your topic, then press return.
The first occurrence of that word is shown on the screen highlighted. To find the next occurrence of your term press the "Next" button.

I understand this is a very crude way for searching, hey, it's better than nothing I guess. In the future I will be installing a
Google-like search feature for amateurradio.tv.

-Mike

 

 

Show#
Air Date
Segment
Time in Segment
Topics Discussed in Segment
 
 
 
January 3, 2010

1

SPACE REPORT: The 2015 Japanese Space Agency's Mission.
Challenges of maintaining a solar powered satellite.
Focused GH signals sent from a satellite.
Ionizing the atmosphere from ground antennas.
Graceful degradation defined.
Old moon bounce techniques vs new moon bounce techniques.
N2YJC has 80m mobile antenna that performs better after it rains.
M Squared Squalo antennas use in mobile operation.

       
 
 2
N2YJC has 80m mobile antenna that performs better after it rains con't
Dick: "Read Kraus' Antenna and Propagation Chapter on The Infinitesimal Dipole.
Mel shares his HF mobile experiences.
Dick asks N2YJC is his 80m mobile antenna has water in its base.
(Discussion revisited on 100124tech-002 21:00)
Can I use a CB magmount on 10m?
Rigs and their SWR self protect mode- are they effective?
Can I use a commercial marine antenna for 2m use?
       
 
 3
Antenna tips for mobile HT users.
Dick: "Plan ahead of time if your car goes into "stuck throttle mode."
Things to observe when using an open wire antenna.
More about the Toyota recall.

   
25:00
THE TECHNET BALUNS DISCUSSION PT3
Feeding the dipole
   
33:00
Mel starts his worksheet
   
42:30
Definition of "I1" and "I2"
   
51:05
The Inverted L mode
 
 
 
 
4 
00:00
THE TECHNET BALUNS DISCUSSION PT3 cont
W4RNL Inverted L Mode experiments.
 
 
09:10
Proper and Improper junctions
   
13:40
W4RNL Inverted L Mode experiments cont
Antenna designs that influenced Windham antennas and others
   
22:29
The use of line isolators
   
41:30
Why does my balun fail when I use a tuner? Revisited
       
 
5
00:00
QSOs from 146.850 repeater Long Island NY
       
 
January 10, 2010
1
03:10
Job opportunities for hams at DirectTV.com.
 
 
08:38
www.bytemark.com/products/TLTTheory.htm
or use this as a good source for types of baluns used during THE TECHNET BALUN DISCUSSIONS
 
 
15:50
The Lazy 8 Yagi antenna using two phased dipoles
   
42:02
Mel shares one of his early homebrew 20m bamboo antennas
   
46:37
Dick describes antenna end fire
   
50:32
The phasing of two inverted Vs
   
 
 
 2
04:01
Is there an antenna that gives all angles of polarization?
 
12:05
How a small circumference, horizontal mounted loop antenna becomes omni directional.
 
18:59
Mel's experience with multiple small loop antennas
 
26:10
Quadrature phase delay examined.
 
28:54
The HSN antenna installation failure.
 
42:00
Mel shares his concern over hams who have difficulty getting HF with their antennas.
 
58:39
SPACE REPORT: Kempler Space Craft. Spirits wheels now working.
 
 
3
00:00
SPACE REPORT con't
 
13:43
THE TECHNET BALUNS DISCUSSION PT4
Use PT4 with this website. Guanella baluns
 
20:06
What is the most important function of a 1:1 balun
 
46:11
Baluns and common mode impedance.
48:50
What does balun material actually look like?
52:30
The 1:4 balun (fig 2)
4
00:00
THE TECHNET BALUNS DISCUSSION PT4 cont
00:39
Why turn ratio and voltage is not a factor in transformers.
06:11
The history of baluns (and ununs)
09:02
Why balun schematics include numbers and dots.
28:21
Mel explains how Gerry Civic (sp?) did balun winding
 
33:42
 Dick: What is the disadvantage of using balun schematic dots?
 
 
 
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
 
January 17, 2010
1
00:00
http://www.sterlingengine.com/ good source for alternate energy machines
18:05
Alternative energy using longwire antennas
21:03
Sterling Energy Systems has over 600 dishes in TX for alternative energy.
27:15
Cell tower law suite continues in Bayville, NY and now a town in France follows.
47:10
Steps required to peer review an experiment.
53:52
All about Radiax Cable
55:10
Mel examines Bayville NY's reasoning in rejecting cell phone towers
2
03:00
Is Radiax the solution to Bayville NY's problem?
19:40
What happens when the wire is not used on the 3-prong to 2-prong adapter.
41:05
60Hz hum from ham's TV may be caused by bad cable box grounding.
(Discussion revisited on 100124tech-002 30:10)
46:15
Measuring voltage drops on a wire that leads to a copper pipe.
3
00:00
Dangers in digging up water pipes that maybe connected to high voltage.
11:30
Examining telephone pole transformer wire that leads to a house.
19:10
What happens when one disconnects the neutral from the house's circuit box?
27:38
Defining the "Dim/Bright" problem
 
31:16
Stories of dangerous house wiring
45:48
SD Wiring explained
48:55
Transformer Phase A and Phase B
4
00:05
Four-wire residential wiring systems
 
03:27
Measuring transformer phasing and wiring in NYC boroughs.
 
 
 
January 24, 2010
1
04:33
Hardwired ADT home alarm activated when transmitting on 40m
   
33:29
Some suggestions to avoid the ADT alarm problem
   
39:26
Looking inside an ADT alarm box and how it works
 
25:19
MELS EMAIL: Tuners - how they came to be and how they work
       
2
00:50
Is there an novice book on vacuum tubes?
02:40
Dick explains the basics of a vacuum tube
06:17
Early vacuum tube text books
12:40
Mel explains the basics of a vacuum tube
 
17:28
The difficulty in switching from transmitting vacuum tubes to solid state
21:00
N2YJC has solution to mobile antenna that tunes better on 80m when it is wet out revisited
(from 100103tech-001).
26:15
Attaching capacitance hats to the mobile antenna
   
30:10
60hz hum coming through TV revisited
(from 100117tech-002)
3
00:00
www.tinyurl/ycbdsfe.com good source for audio samples of 60 cycle hums
06:10
Another "Dim/Light" problem, this time caused Cablevision
09:02
Basement grounding rods installation and precautions
22:16
All about grounding
 
37:12
Ground rod clamping
50:52
Using the correct conduit for grounding
55:11
Perpetual motion energy
4
05:15
Dick: YouTube can not guarantee accurate information
15:10
Free energy may not be free after all
18:37
Debate over free energy machines
       
 
January 31, 2010
1
03:01
Web cams (Logitech 9000) - a great tool to keeping in touch worldwide
   
22;15
Concerned web cam users regarding going over the monthly traffic limit
   
31:30
The amount of bandwidth Web cam codecs use
 
43:24
High definition web conferencing packages
 
50:37
Advances in computer generated graphics and TV screen scanning
 
55:38
Perpetual motion machines revisited from
100124-003 55:11
       
 
2
02:40
US DTV standards
   
08:16
How IMAX projectors work
   
12:02
Computer graphics in the movie Avatar
 
15:25
Perpetual motion free energy machines revisited from 100113tech-001 55:38
 
48:48
Eric KE2EJ: Is the mass of the universe finite or variable?
 
53:45
Dick: What really is an ocean wave?
 
57:11
Energy vs particles
       
 
3
00:30
What makes up a magnetic field?
   
06:50
Dick explains oscillation by using a California 10Ghz repeater as an example
   
15:35
Ham: Will I be able to use an old Yagi on my roof to receive?
 
21:07
Will I be able to transmit on this old Yagi roof antenna?
 
25:25
The Toyota recall revisited
 
47:10
Black hole gravity lensing effect
       
 
4
01:15
SPACE REPORT: The last of the shuttle missions
   
17:15
MELS EMAIL: How do you roll a balun
THE TECHNET BALUNS DISCUSSION PT5

Guanella webpage pdf
   
31:33
Examining the Walt Maxwell balun
 
39:21
Why thermalized wire is good for baluns
 
41:00
Lou Varney G5RV article good info on RSGB baluns
 
47:38
Examining the bazooka balun
       
5
QSOs from 146.850 repeater Long Island NY
     
 
February 7, 2010
1
03:49
HHO and free energy
   
09:15
Water-powered cars
   
25:01
Prius recall due to faulty processor
 
27:10
Where we stand with new alternative energy
 
35:31
Using kinetic energy-based machine when the power goes out
 
42:40
Echo link now available on the iPhone and iTouch
 
47:00
Cleaning silver-plated adapter connectors that have turned black.
       
 
2
00:00
Ham talks about an article he wrote about SETI
   
09:20
Drakes equation explained
   
18:16
US and Russian covert high speed experiments
 
25:19
MELS EMAIL: Tuners - how they came to be and how they work
 
30:00
Why do some signals become stronger when the tuner is turned off?
 
35:09
Where to place a Bird Watt Meter, and what happens to it when the antenna is adjusted.
 
55:47
Does an antenna tuner obey conservation of energy?
       
3
00:00
How Dick tested the quality of an Anechoic Chamber at Edwards AFB
   
03:39
Corrosion vs. oxidation
   
14:45
Mystery "Figure 8" cable spotted in tunnel.
   
27:05
The use of TDR meters
   
31:48
Airport Full Body Scanner safety
   
49:10
SPACE REPORT: ISS space walks scheduled
   
54:00
Test results of Space Shuttle tile foam
   
 
4
00:00
Ham talks about an article he wrote about SETI
   
09:20
Drakes equation explained
   
18:16
US and Russian covert high speed experiments
 
25:19
MELS EMAIL: Tuners - how they came to be and how they work
 
30:00
Why do some signals become stronger when the tuner is turned off?
 
35:09
Where to place a Bird Watt Meter, and what happens to it when the antenna is adjusted.
 
55:47
Does an antenna tuner obey conservation of energy?
     
       
 
5
  QSOs from 146.850 repeater Long Island NY
 
6
  QSOs from 146.850 repeater Long Island NY
     
1284
February 14, 2010
1
06:50
March 2010 QST article on Ground Plane Systems of vertical antennas
   
19:10
Does performance improve when you increase the radials?
   
22:40
MELS EMAIL: Rods and ground resistance
   
29:15
Current buildup and Finite Q
   
38:30
Dick: Almost any reasonable passive antenna will obey the Law of Reciprocity
   
43:00
Individual atoms that belong to the "Cloud of Electrons"
   
44:30
Machines that produce more than they use
   
46:50
All about radio frequency biohazard
   
 
2
01:49
Unfounded fears of microwave radiation
 
 
08:09
The effects of fluorescent light flickering
 
 
12:55
Unfounded fears of cell phone RF radiation
 
 
17:50
What effects a human more- fluorescent light flickering or the light transformers?
 
 
26:25
Does a radio wave travel though water, the ground, and space?
 
 
38:36
The Craziness of Propagation
 
 
44:10
The ARRL Handbook - a good source on information on The ANCE Family
 
 
54:13
W2ILP: Are UHF frequencies more harmful than microwaves?
 
 
 
3 
00:00
More discussion on fluorescent lights and their effect on the workplace
 
 
13:12
Microwave RF exposure and its effect on objects ie water and the human bone
 
 
17:15
Examining the "Radiating System"19:05
   
19:05
Story of Walt Maxwell adjusting a satellite antenna
   
21:47
The testing of the thermal effects of microwave in England
 
29:31
Loading coils and antenna patterns
 
36:41
K2RIW Yagi impedance matching article on amateurradio.tv homepage good source for impedance matching
 
38:00
Ham offers his email for articles on free energy
 
49:05
Vortex-based mathematics to be discussed in a future TechNet
 
50:50
KC2QIQ Glen Test performed on coax cable, ladder line radiation
 
 
4
09:23
MELS EMAIL: When do you use a tuner and do you don't use one?
 
17:20
MELS EMAIL: Can I use a wooden cabinet for a home-brewed tuner?
   
22:50
Debate over tuner with a wooden enclosure vs tuner with a metal enclosure
   
38:20
MELS EMAIL: A ham bought an old rig that has a variometer- what is that?
   
47:38
MELS EMAIL: Why does a mobile antenna with good bandwidth does not put out a great signal?
 
 
5
QSOs from 146.850 repeater Long Island NY
 
1285
February 21, 2010
1
05:00
KC2FFA Charles: SWR readings on a discone transmitting on 70cm vs transmitting on 2m
   
09:40
Insertion loss of feedlines
   
17:14
ARRL Antenna Book 18th Ed. good source for modifying a discone for ham bands
   
26:40
The Brown and Woodward Curve explained
   
30:30
Perpetual Motion Machines revisited
   
32:24
Gravitational sources of power
   
45:20
Electromagnetic fields and gravity
   
51:20
Dick defines super refraction
   
54:34
Building a tuner for aerial mobile use
   
   
 
2
01:10
Variable vacuum capacitors
   
16:17
Drawing on paper a current source and a voltage source
   
18:04
Mel explains his experiment with an adjustable dipole and his Johnson Matchbox
   
30:10
Why there is a difference between a matchbox and a tuner
   
37:30
Dick: Can you put 100 watts into a matchbox and get 99 watts to the antenna?
   
53:51
Tuning a matchbox to the fundamental frequency the possibility of having a second harmonic
   
58:31
Can a matchbox lose RF energy?
   
 
3
03:51
Is it possible to have impedance loss on HF by using a matchbox that doesn't generate heat?
 
14:01
QST Magazine Feb 2010 good article debate re: the proper length and proper amount of ground radials
 
 
18:40
Mel describes a Marconi antenna and shares his 160m experiments
 
 
33:45
Is each amplifier an antenna tuner?
 
 
43:10
W2ILP shares how he covered his flat roof with conductive aluminum paint
 
 
50:25
Mel describes the Marconi quarter wave antenna
 
 
56:10
What the SWR says when you tune a matchbox and an antenna
 
 
 
4
03:34
Building an SWR bridge
 
06:20
Discussion on 5.8 to 1 SWR antenna that reflected 50% of its power
 
 
09:30
How can a watt meter show 180 watts when I'm transmitting 100 watts?
 
 
11:30
The completely shielded antenna tuner
 
 
15:15
Power matching vs Impedance matching
 
 
22:41
Heathkit relectometers
 
 
31:58
Are MOVs in modern pieces of equipment?
 
 
34:01
What really is an antenna tuner?
 
 
53:50
New documents found re: the Toyota recall
 
 
5
QSOs from 146.850 repeater Long Island NY
   
1286
February 28, 2010
1
02:36
Review of Levittown Hamfest
 
04:15
Evaluating the Law of Thermal Dynamics
 
08:55
Ham gives website as a good source for websites on Thermal Law Dynamics and Free Energy
 
 
13:20
Comparing a 2m ground plane vs a 2m J Pole antenna
 
 
26:20
Ham gives website address on good article re: Delta Loops and impedance matching
 
 
37:40
How do you get 50 ohms out of a Marconi Antenna?
 
 
54:50
Looking back at the early days of RCA TV sets before the days of frequency allocation
 
 
 
2
05:11
The Double Conical and Channel Master travel V antenna
 
06:17
TV ghost images in the early days of TV
 
 
15:30
The history of TV and TV antennas during the age of Emerson and Dumont
 
 
22:54
History of the TV Color Wheel
 
 
30:01
Discussion on power flow in a transmission line with a 20v generator
 
 
41:11
What happens when you put a Bird Watt Meter at different places on the transmission line?
 
 
52:16
Transient Analysis and Time Domain Reflectometers
 
 
58:00
How a Bird Watt Meter is effected by transmission line hotspots
 
 
 
3
02:00
Ways of misusing your SWR meter
 
06:06
Cable heating and its effect on insertion loss
 
 
10:10
Dick: Mother Nature thinks only in voltages
 
 
10:51
Infinite series mathematics
 
 
13:56
KC2UJL claims that tuners are unnecessary
 
 
25:52
SPACE REPORT: The GOES "P" satellite
 
 
41:31
MELS EMAIL: Please evaluate the new DJ 2UT HF25' monopole antenna
 
 
 
4
01:20
Antennas by John Krause good source on the infinite sable dipole
 
06:18

Jerry Civics's (sp?) work on 80m antennas in relation to electronically small antennas

 
 
10;16
A ham applauds Dick K2RIW for his actions to speak his view on how antennas work
 
 
13:16
Examining the Monopole revisited
 
 
27:50
Wayne Overpeck K6YNB experiments with Cubical Quads and Yagis
 
 
49:51
MELS EMAIL: 7/8 Andrews Heliax 70cm vs 1/2 Andrew Heliax on 70cm
 
 
 
 
5
QSOs from 146.850 repeater Long Island NY
     
1287
March 7, 2010
1
05:00
Ham uses discone antenna to watch Oscars.
   
08:50
Ham's home computer won't accept ARRL software.
   
21:25
Update on transient radiation information.
   
24:25
Ham uses his body to receive 2m QSOs
   
 28:07
RF biohazard debate reviewed.
 
42:01
When transmitting from a kitchen- what role does the metal silverware play in the radiowaves?
 
48:11
The Anti RF Radiation movement in Bayville NY
 
 
54:00
The reasons why we ground our equipment.
 
 
 
 2
07:30
1947 antenna mast RF exposure accident at Brooklyn Navy Yard
   
18:54
Do you have to reformat a Windows Vista hard drive due to a lost password.
   
19:51
Opinions on the RF Exposure scare in Bayville NY
   
35:10
Search on Google: "Research and Strategies Inc." for good report on the Toyota recall.
   
36:01 
Opinions on the RF Exposure scare in Bayville NY revisited
 
41:30
Dick: There are risks in everything we do.
 
56:15
Toyota recall revisited
 
 
 
 3
00:00
RF radiation and its effect on the human body
   
04:10
The possibilities of electrolyte powered cars.
   
20:02
Debate over the possibilities of electrolyte powered cars.
   
 34:18
Debate over injection compression in a piston engine and a jet engine.
 
49:45
Five cycle engines
 
 
4 
00:00
Perpetual motion devices
 
 
11:18
How science views cold fusion
 
 
16:37
Ham reviews book on free energy
 
 
26:10
Dick: Do you have enough faith to build a free energy machine?
 
 
34:01
Creating instability to get free energy
 
 
35:19
Debate over Faraday Floating Magnet Experiment
 
 
42:37
Is free energy really free?
 
 
1289
March 21, 2010
1
10:15 Carrier detected on 54.309 Mhz RF NYC Ch2
 
17:00 Why is an incandescent light bulb (GE18T3) bright when only one terminal is touching an electrical circuit?
 
27:03:00 How the incandescent light bulb problem relates to baluns
 
43:09:00 Dick asks how the incandescent bulb is attached to the antenna
 
45:22:00 Why is an antenna pattern shaped like a doughnut?
 
   
 
2
0:00 Measuring a dead zone as you walk away from the antenna using a field strength meter
 
4:07 The future of over-the-air broadcasts
 
6:45 ABC TV lays off 200 workers
 
9:09 Converting stinger connectors to PL-259s
 
18:36 What is the velocity factor of 1/2" hard line
 
20:26 Electromagnetic anti-gravity experiments
 
26:45:00 Ham experiences electrical line interference on 40m by a 60 cycle
 
36:45:00 Do you need new coax or clean your antenna when you still have low SWR?
 
44:05:00 Is there a difference between a ground plane and a counterpoise?
 
47:00:00 Toyota recall update
 
55:34:00 MELS EMAIL 01: Folded Vertical Monopole revisited
 
   
 
3
0:00 www.summerantennas.com good source for T50 Vertical Monopole antennas
 
8:39 Ham are skeptic of the T50 folded monopole
 
18:39 Mel: T50 info in ARRL Antenna Book 18th Ed p698
 
32:31:00 Examining the T50 specs
 
56:44:00 Gain and boom lengths of TV antennas
 
   
 
4
2:19 Why Consumer Reports don't rate TV antennas
 
6:15 The fate of the lower VHF TV frequency allocation and low power TV stations
 
19:19 The politics of rural broadband
 
24:09:00 Gain and boom lengths of TV antennas revisited
 
28:10:00 MELS EMAIL 02: Ham inherited and old W2IMU K2RIW antenna and needs more info about it
 
37:00:00 A quick list of digital low powered TV stations presently transmitting
 
42:01:00 MELS EMAIL 03: Hams would like more explanations on rig specs: noise floor, S/N ratio, SINAD etc
 
   
 
5
  QSOs from 146.850 repeater Long Island NY
       
1290
March 28, 2010
1
2:21 An antenna's Reactive Near Field
 
 
12:19 Why is there a hole in the antenna field's doughnut
 
25:30:00 Removal of all cell phone towers in Bayville NY
 
39:40:00 W2AMU does research on RF radiation on the cardiovascular system
 
48:10:00 Book: Frequency Selective Surfaces reviewed
 
50:15:00 Property changes when you use ferrite-like material wrapped around a conductor
 
   
 
2
0:00 When a transmission line is an antenna
 
4:30 SWR rating and its effect on power supply current drain
 
14:13 Some cases of transmitter hum
 
23:00 What happens when you put a mag mount on your power supply
 
24:39:00 Ways that bugs are used in telephones
 
31:51:00 Dick explains Lenz Law
 
39:57:00 SPACE REPORT: The Super Collider lecture at Stony Brook University
 
53:30:00 Dick: North East Astronomy Forum is the Dayton Ham fest of astronomers
 
55:40:00 IEEE LI Consultants Network meets 1st Wed. of each month at Briarcliff College
 
58:21:00 A scientific model never explains everything
 
   
 
3
0:00 Examining the behavior of a Gyroscope and energy
 
7:20 Unipolar point changes
 
14:19 Do electrons flow through the human body when one is touching a live copper wire?
 
23:49 Dicks digital multimeter gets exposed to an electrostatic field
 
26:25:00 How does current know which way to flow?
 
27:26:00 Tesla's "Sending Power Through Air"
 
32:10:00 NASA's solar-powered satellites
 
34:21:00 Tesla's "Sending Power Through Air" revisited
 
51:02:00 Dick needs the schematic to his TES2500 multimeter
 
58:41:00 MELS EMAIL 01: Mel has received lots of email from T50 monopole owners
 
   
 
4
0:00 Mel and Dick discuss the T50 monopole in detail
 
40:00:00 Ham has Yeasu FT-897 problems when he switches to a key pad on 10m
 
41:50:00 MELS EMAIL 02: How do you measure the impedance of and open wire feed line?
       
   
5
QSOs from 146.850 repeater Long Island NY
   
1291
April 4 , 2010
1
5:45 Measuring two differently wound tiroidal coil inductors each at 6 ohms
    33:10:00 The frequency of the two differently wound tiroidal coils
    39:09:00 Coupler coefficient examined
    43:35:00 Is tirroid 1 and tirroid 2 acting in a linear manner? Is it an audio application?
    50:03:00 Can the two tirroidal cores play a role as a notch filter
    54:43:00 Dick: The 2 tirroidal discussion can be titled "Series filtered choke on a power supply"
       
 
2
2:20 Home brewing a 2m ground plane antenna and using an RF choke with it
    6:10 Looking closely at the RF choke
    18:30 Ham has problem with his ICOM amp ALC circuit and his ICOM 7800
       
 
3
2:17 Ham offers a free circa 1940 book on RCA tubes to anyone who is interested
    8:20 Ham says he saw CNN segment on a weird looking fish
    9:09 NASA gets involved in the Toyota recall
    10:34 NASA finds more water on the moon
    12:09 Ham says he saw CNN segment on a weird looking fish revisited
    16:31 SPACE REPORT: STS131 launches on 4/5/10. ISS update . The future of unmanned missions
    42:15:00 Ham has problem with his ICOM amp ALC circuit and his ICOM 7800 revisited
    51:13:00 Dick: the advantage of buying older equipment with a good track record
       
 
4
0:25 MELS EMAIL 01: What is MDS (Minimum Discernable Signal)?
    11:37 White Noise explained
    22:14 What is the origin of Black Body Radiation?
    23:30 What does "Temperature" mean?
    28:50:00 MELS EMAIL 01: What is MDS (Minimum Discernable Signal)? Revisited
    32:11:00 Two-tone dynamic range testing
    36:30:00 Mel explains MDS (Minimum Discernable Signal)
    38:31:00 3rd Order Intermod explained
    42:01:00 How and why do you want to measure 3rd Order Intermodulation?
       
 
5
QSOs from 146.850 repeater Long Island NY
   
1292
April 11, 2010
1
7:00 How a ham participated in the Arecibo EME experiment
 
12:31 All about EME
 
22:52:00 Proper etiquette and tips when contacting via EME
 
46:54:00 CQ Magazine March 2009 p34 has K2RIW EME antenna setup
 
51:40:00 Connecting coax to mach the impedance - is it important that itís a perfect match?
 
59:33:00 What connector will fit on an RG6
 
   
 
2
3:03 All about RG6, RG8, RG8X and the connectors to use
 
20:05 Different coax connector sealant products
 
31.15 KE2EJ talks forum the NAB convention in Las Vegas
 
33.59 Different coax connector sealant products revisited
 
36.48 Choosing an oscilloscope to buy
 
56.05 Evaluating oscilloscope displays
 
   
 
3
8.31 An oscilloscope's bandwidth, memory rate, and sample rate
 
14.43 Radio Day Expo April 17 2010 CW Post College
 
19.30 Ham talks about washing the insides of electronic equipment with soap and water
 
21.09 Ham asks for Dicks email address
 
28.18 Joe N2RQ needs advice on what antenna to put on top of the Brooklyn Tech Building
 
58.10 Group concludes that a fanned dipole is the best solution for the Brooklyn Tech Building
 
   
 
4
4.34 SPACE REPORT: Update on STS131 and The Messenger spacecraft to Mercury
 
15.23 MELS EMAIL 01: How do you get + or - "J" from a resistance and reactiance measurements using a Smith Chart
 
24.01 Mel starts J Smith Chart tutorial
 
44.33 Digital Smith Charts
       
       
 
5
QSOs from 146.850 repeater Long Island NY
   
1293
April 18, 2010
1
6.90 N2EO would like update on the amateur radio's M.A.R.S. Program
 
15.25 Status of M.A.R.S. frequencies
 
22.18 Review of the Arecibo EME experiment
 
37.58 Software and protocols used for EME
 
43.30 wa1mba.org Joe Taylor website good source for EME software and protocols
 
46.44 Another ham shares his experience reaching the Arecibo EME signal
 
55.00 Is it possible to bounce signals off volcanic ash?
 
56.21 2m beacon setup now in Nova Scotia
 
57.06 Precipitation scattering discussed
 
   
 
2
0.04 Examining the Tektronics 754 and Tektronics 754D and other oscilloscopes
 
28.12 Monitoring Times July 2009 has weblink to M.A.R.S. frequencies
 
29.13 Using the Smith Chart for an unknown impedance cont from 100411tech-004 15:23
 
   
 
3
29.13 Cont Using the Smith Chart for an unknown impedance cont from 100411tech-004 15:23
 
27.50 Ham replaced G5RV wire with stainless steel wire but he can't load it
 
   
 
4
2.05 Visual sequencing and spectral overlay features of an oscilloscope
 
12.30 Spectrum Analyzer features of a Motorola Service Monitor
 
19.04 MELS EMAIL 01: Is there a simple way to test a FET or a JFET?
 
28.51 MOSFET Gate to Source voltage resistance
 
35.16 N6UXW measured peak voltage waveform out of a Tesla Coil
       
1294
April 25, 2010
1
6.90 N2EO would like update on the amateur radio's M.A.R.S. Program
 
15.25 Status of M.A.R.S. frequencies
 
22.18 Review of the Arecibo EME experiment
 
37.58 Software and protocols used for EME
 
43.30 wa1mba.org Joe Taylor website good source for EME software and protocols
 
46.44 Another ham shares his experience reaching the Arecibo EME signal
 
55.00 Is it possible to bounce signals off volcanic ash?
 
56.21 2m beacon setup now in Nova Scotia
 
57.06 Precipitation scattering discussed
 
   
 
2
0.04 Examining the Tektronics 754 and Tektronics 754D and other oscilloscopes
 
28.12 Monitoring Times July 2009 has weblink to M.A.R.S. frequencies
 
29.13 Using the Smith Chart for an unknown impedance cont from 100411tech-004 15:23
 
   
 
3
29.13 Cont Using the Smith Chart for an unknown impedance cont from 100411tech-004 15:23
 
27.50 Ham replaced G5RV wire with stainless steel wire but he can't load it
 
   
 
4
2.05 Visual sequencing and spectral overlay features of an oscilloscope
 
12.30 Spectrum Analyzer features of a Motorola Service Monitor
 
19.04 MELS EMAIL 01: Is there a simple way to test a FET or a JFET?
 
28.51 MOSFET Gate to Source voltage resistance
 
35.16 N6UXW measured peak voltage waveform out of a Tesla Coil
 
   
 
 5
QSOs from 146.850 repeater Long Island NY
   
1295
May 2 , 2010
1
7.03 The HP410, HP654, and the HP754 voltmeters are examined
 
24.38 Standard and Calibration equipment
 
26.10 HP 840S Vector Voltmeter examined
 
28.32 RMS Digital Meters (i.e. Fluke) examined
 
34.23 The advantages of a vacuum tube voltmeter
 
38.35 Mystery antenna near 135 Parkway south of the LIE
 
49.00 Graphing 3rd order intercepts (3rd order terms) on a Smith Chart
 
   
 
2
6.40 Defining two-tone dynamic range
 
10.00 www.DF9ICDE website good source for testing 2m all mode receivers
 
13.01 Determining a receiver's weakest signal sensitivity
 
16.50 The Intermod intercept point
 
23.09 Minimal discernable signal and the standards of the S-Meter
 
27.50 Defining Reciprocal Mixing
 
39.20 Why the first mixing stage is important
 
42.03 The role of upconvertng
 
53.50 Dick: To have a high enough dynamic range receiver you must dissipate power
 
55.20 The history of the use of RF amplifiers
 
   
 
3
4.47 Mystery antenna near 135 Parkway south of the LIE revisited
 
7.28 Mel explains the Grimbeton System designed by E Anderson
 
12.11 Mystery antenna near 135 Parkway south of the LIE revisited again
 
13.30 Ham replaced G5RV wire with stainless steel wire but he can't load it revisited from 100418tech-003 27.50
 
24.29 Bill Moyer interviews the FCC Chairman re: nationwide broadband, and cell phone biohazards
 
   
 
4
2.07 Download and upload speeds of Cablevision vs. Verizon
 
4.10 N2EO - FCC should get more involved in policing the ham bands
 
6.50 Download and upload speeds of Cablevision vs. Verizon revisited
 
8.01 How WLIW-TV uses fiber and the internet
 
20.30 WDM and fiber optics
 
23.59 Recent Budget cuts hit PBS hard
 
 
33.05 SPACE REPORT: The Solar Dynamic Observatory
 
 
40:04 MELS EMAIL 01: Mel adds a resistor to the Smtih Chart for hte sake of clarity for the ham listeners
 
 
 
 5
QSOs from 146.850 repeater Long Island NY
   
1296
May 9, 2010
1
8.30 Dick: There is no such thing as junk science and dumb questions
 
11.28 T5375A-U voltmeter and the US Marine 116A multimeter- why do these meters repeat themselves?
 
21.02 Stray capacitance of probes
 
30.01 Gause meters examined
 
41.42 Peter Dahl's website good source on how to make a transformer
 
42.00 Mel talks about sources of information on transformers and tirroid permeability
 
48.51 Magnets that are too strong from Hall Effect devices
 
56.50 Ham Radio Magazine June 1977 good article on Tirroid Permeability
 
59.15 Helical antennas used to communicate with amateur satellites
 
   
 
2
9.01 Helical antennas vs. Horizontal Polarized Yagis
 
15.11 The effects of seeping a Helical antenna
 
23.41 MELS EMAIL O1: How to Setup Your Test Area/Workshop Part 2 Soldering
 
43.17 Why having a multimeter is so important for a bench/workshop
 
49.05 The importance of using goggles when soldering
 
51.50 The use of Californian soldering paste
 
   
 
3
2.15 Bernie: There are good soldering videos on YouTube
 
4.10 What is a good solder joint?
 
5.45 Eutectic Solder
 
8.08 Early day Simpson and Triplett meters
 
11.29 Digital multimeters with simultaneous analog and digital displays
 
19.00 Ham is trying to locate a Collins 30L1 amplifier 250v capacitor
 
22.56 Concerns over the leaking Collins capacitor
 
32.00 Dick and Mel look back at Collins models, tubes, and the mods Mel made to his Collins rig
 
55.10 A little history of the Collins Company
 
58.08 Mel discusses an old photo of him and Dick
 
   
 
4
3.27 What does an elevated feedline do for an antenna?
 
12.00 Every cell model has to pass three individual tests
 
16.18 The magic of 1/2 wave and 5/8 wave radiators
 
 
21.10 What does an elevated feedline do for an antenna? Revisited
 
 
29.50 Mel shares his experiments he conducted with elevated feed points
 
 
39.10 The Chu/Wheeler Criteria
 
 
42.58 What does an L Network consist of?
 
 
 
 5
QSOs from 146.850 repeater Long Island NY
   
1297
May 16, 2010
1
4.48 Space Shuttle and ISS passes over head tonight at 8:22pm
 
10.21 Ham is looking for a local LI ham who professionally installs antennas www.antennaking.com
 
17.30 Ham purchased a Diamond 300A - does it need to be grounded?
 
25.20 Building a bridge rectifier for a high voltage power supply
 
42.50 Hams recall seeing overhead Shuttle ISS with large Chinese binoculars
 
46.55 Paul gives specs on the Shuttle and the ISS
 
50.30 Hams recall seeing overhead Shuttle ISS with large Chinese binoculars revisited
 
53.01 More Shuttle ISS observations by hams
 
   
 
2
11.37 www.heavensabove.com good source for astronomy hobbyists
 
19.17 MELS EMAIL 01: How to Setup Your Test Area/Workshop Part 3 Buying a meter
 
59.00 Ham suggests buying an impedance bridge instead of a meter
 
   
 
3
6.20 WS2N suggest novices by electronic experiment kits from Radio Shack
 
9.10 Dick gives examples of voltage meter and ohm meter measurements
 
12.30 The importance of shorting your meter's leads to test your meter
 
26.20 SPACE REPORT: Review of Spirit and Opportunity missions
 
28.08 HP HDTV discussion continues from 100502tech-001 32.40 : power supplies, transformers, schematics at East Meadow Library
 
58.12 The days are over for detailed schematics debate
 
   
 
4
0.40 Eric KE2EJ Reviews the Dayton Hamfest
 
8.38 What is the easiest way to measure 6000 volts
 
19.31 High voltage probes
 
26.10 Handling a 10 mega ohm resistor
 
29.09 The accuracy of 100 Gigaohm meters
       
1298
May 23, 2010
1
9.13 How to convert a schematic into a printed circuit board
 
16.01 Software companies that convert a schematic into a printed circuit board
 
27.40 Mel shares companies he has used to make printed circuit boards
 
32.13 Prototyping printed circuit boards
 
34.22 Dick: Don't get sucked into buying too much gain when purchasing a stereo zoom microscope
 
41.55 Mel shares companies he has used to make printed circuit boards revisited
 
50.01 Where to buy components for printed circuit boards
 
56.39 Where to bet equipment to make printed circuit boards
 
58.57 What a Magnetometer does
 
   
 
2
2.39 Eric KE2EJ: There are Yahoo Groups for those who are interested in printed circuit boards
 
3.32 The cost of a CNC and where to buy one
 
6.20 Making material stick to printed circuit boards
 
10.10 Paul WS2N shares his visit at Andy WA2CDL re: repairing the HP HDTV fuse.
 
25.06 The Skin Effect vs. metal
 
42.58 Painted on resistors
 
49.00 MELS EMAIL: Setting up your own test area/workshop - PART 4 IDENTIFYING COMPONENTS- RESISTORS
 
49.40 The resistor color code
 
56.56 Sizes of resistors
 
   
 
3
9.53 How to test a resistor
 
18.10 Zeroing out the multimeter movement needle
 
25.40 Ham says that some inexpensive Chinese analog meters are not very accurate
 
29.01 Dick: Be aware of the multimeter's "2X" switch- and the Reverse Polarity Switch
 
34.10 Multimeter mirror scales
 
41.20 Measuring line noise with an oscilloscope
 
   
 
4
2.39 Using a high filter network as an alternative to measuring line noise
 
11.10 Can the line noise get into the oscilloscope itself
 
23.51 Utilizing isolation transformers on oscilloscopes
 
29.58 Are there any benefits plugging an oscilloscope into an uninterrupted power supply?
 
 
33.20 Measuring differential noise of a wall outlet
 
 
47.50 Mel: ARRL Book Interference- How To Find IT and Fix It good source on interference
 
48.51 Dick talks about Andy WA2CDL recessed lighting and the interference it caused.
 
 
 
5
QSOs from 146.850 repeater Long Island NY
       
1299
May 30, 2010
1
6.00 Dick talks to a man who has been a ham for over 70 years.
 
 
25.01 Ham wants to install a 10 foot ATV dish on his Glenn Martin tower
 
33.00 Using a dish for ATV vs. using a yagi
 
40.00 Integrating computers with ATV
 
47.50 The use of ATV sideband filters
 
52.10 Integrating computers with ATV revisited
 
56.05 Ham shares his involvement in ATV
 
   
 
2
0.35 ATV repeaters and amplifiers
 
15.10 The standby current of a Mirage amplifier
 
17.20 Dick and Andy give some specs on the CX450B tube amplifier
 
31.49 Andy goes over a list of local NYC hams who are/were involved with ATV
 
40.40 How to calculate peak power when transmitting ATV
 
45.30 ATV Quarterly.com good source for ATV
 
52.11 Tips on checking your ATV transmitting signal
 
55.40 How to calculate peak power when transmitting ATV revisited
 
   
 
3
3.40 Digital TV Ch 25 carrier signal in NYC has no video- why?
 
8.00 The pros and cons of using a DTV converter box Autoscan feature
 
17.11 Digital TV "Branding"
 
31.30 Comet CHA-250B broadband HF vertical antenna examined
 
51.40 Reviews of the Comet CHA-250B can be found on eham.net
 
   
 
4
1.10 What would be a matching system for the Comet CHA-250B
 
8.18 Mel shares how a bird in a tree caused antenna problems
 
19.20 MELS EMAIL 01: The Comet H422- do you have to rotate this rotatable dipole?
 
23.30 The rotation difference needed for the H422V vs. H422 horizontal antenna
 
27.17 What would happen if the H422 antenna was made into a inverted V
 
29.45 The effects if you used 2 H22vs (one north and one south)
 
37.01 Dick gives 2 problems that involve a 132 foot 80m antenna 60 feet in the air
 
   
   
5
QSOs from 146.850 repeater Long Island NY
       
   
6
QSOs from 146.850 repeater Long Island NY
       
 1300
June 6, 2010
1
4.34 Using RF filters (i.e. Krohn-Hite, Butterworth) in the RF stages of a receiver
 
 
9.05 Real response vs. Image response
 
12.21 Publication- Reference Data for Radio Engineers good source for RF filter information
 
13.30 Ideal brick wall filter explained
 
15.01 Butterworth filter explained
 
16.27 Chevy Chev filter explained
 
19.51 Quartz crystal resonnators
 
21.04 Mel shares two filters he home brewed
 
25.09 Dick: Filters are not simple
 
29.33 Digital Signal Processing Filters - the pros and cons
 
39.05 Mel explains the Newton Rathson Technique
 
40.50 Impedance matching filters
 
41.01 Dick explains the constant impedance filter
 
45.00 Elaborate uses of filters
 
   
 
2
0.16 Eric KE2EJ explains why DTV CH25 in NYC was out last week
 
10.05 Eric KE2EJ explains the workings of (PATT) program address table, Program Mgt Table, TVCT, DTV streaming
 
20.07 All about DTV streaming analyzers
 
25.39 64 bit analog to digital converters
 
37.11 Surface mount capacitors
 
43.51 Testing capacitors with a meter
 
50.50 A capacitor has a "4R7" marking on it-what is it?
 
   
 
3
0.01 Metric units for Farides
 
11.10 IEC webstore 60062 document good source for component markings
 
13.19 Dick: Engineering requires using a database of information
 
14.31 Surface mount capacitors revisited
 
20.17 Placement of a dual band magmount on a car with a sunroof
 
36.15 Mel reviews the recent LIMARC flee market
 
45.44 Diamond CP725H HF vertical radial antenna mounted 25' in the air - what is the sequence for tuning it?
 
   
 
4
3.20 Bypassing antenna tuners
 
 
20.10 What would if a digital volt meter was placed across the Diamond CP725H antenna
 
 
29.44 Fancy HF vertical performance vs. a 40m dipole performance
 
 
44.29 N2EO tests a quiet Heathkit B110A transceiver on 6m (continues on 100613tech-001 2.27)
 
 
   
   
5
QSOs from 146.850 repeater Long Island NY
       
 1301
June 13, 2010
1
2.27 N2EO tests a quiet Heathkit B110A transceiver on 6m (from 100606tech-004 44.29))
    5.05 Availability of 6m to 2m transverters on the market
    12.13 N2EO tests a quiet Heathkit B110A transceiver on 6m revisited
    15.45 Will Ch2 frequency now be quiet for 6m activity?
    19.02 Experimenting with the placement of a 7812 regulator in an AR Squared preamp
    31.19 Availability of 6m to 2m transverters on the market revisited
    34.25 Problems with regulators used for ATV
    41.49 Three terminal regulators
    43.51 Ham wants to use Xband DirectTV dish to receive XM Radio-will it work?
    51.15 Listening to XM Radio over the internet for less money
 
   
 
2
2.31 XM Radio via RF vs. XM Radio over the internet
 
17.00 MELS EMAIL 01: Setting up your own workshop / test bench INDUCTORS
 
25.01 Markings on Inductors
 
33.59 Testing inductors with LCRs
 
41.41 Dick shares his "in person TechNet" at his family's get-together
 
42.50 Ham shares his recent purchase of the HP 8082 Spectrum Analyzer
 
54.51 Ham needs to replace the HP8082 CRT
 
   
 
3
0.51 CRT rejuvenators
 
7.01 Drawbacks of computer driven spectrum analyzers
 
12.00 Viewing square waves on an HP spectrum analyzer
 
28.33 The HP 8082 generator
 
34.00 Using a computer to be spectrum analyzer
 
38.49 Do you need an oscilloscope when you already have a spectrum analyzer
 
42.09 The limitations of a service monitor
 
57.09 signalhound.com good source for converting a computer to be a spectrum analyzer
 
   
 
4
2.16 The VC3165 frequency counter
 
5.45 The Signalhound breakout box examined
 
9.50 SPACE REPORT: Japanese space craft returns to earth; large radio telescope in the Netherlands
 
 
29.01 MELS EMAIL 01: Can a driven element be used as a rotaable dipole ?
 
 
37.46 Are there any scaling measurements for a monoband Yagi?
 
 
42.11 The performance of a 75m vertical dipole mounted on a tower?
 
 
51.11 Review of N2EOs Healthkit Heathkit B110A transceiver on 6m from 100613tech-001 @ 2.27
 
 
   
   
5
QSOs from 146.850 repeater Long Island NY
       
 1302
June 20, 2010
1
8.20 Ham talks about experimenting with a tesla coil in his shack
 
18.48 Rotary magnetic machines vs. a tesla coil
 
39.41 Dick gives his insight to ham's telsa coil experiment
 
46.20 Air and high voltage and interesting mix
 
48.09 WS2N shares what happened when he reversed the polarity of his welding machine
 
51.00 Paschen Curve explained
   
 
2
0.00 The effects of doubling atmospheric pressure
 
5.30 Voltage's effect in moist air vs. dry air
 
13.04 Velocity and Kinetic energy and magnetic energy sceneries discussed
 
32.23 MELS EMAIL 01: How to conduct a "duplicate antenna" test before buying a HF vertical
 
58.30 Mel shares how to make the "duplicate antenna"
 
   
 
3
- Mel shares how to make the "duplicate antenna" con't
 
49.02 Ham Radio Magazine article "Short vertical antenna series" W2FMI good source on the "duplicate antenna" Mel spoke of. Also Antenna Engineering handbook CH4 Brown & Woodward info on monopoles
 
56.01 Report/Terman Radio Antenna Engineering also a good source related to Mel's "duplicate antenna"
 
   
 
4
8.06 How W2FMI insulated his antennas
 
9.30 The pros and cons of using copper piping for your antenna
 
11.13 DXEngineering.com's Hygain Hytower H4G-AV-18HT antenna
 
17.37 The Kindorf Strap examined (kindorfcinchclamp.com)
 
35.40 Heating PVC piping to make a good seal
 
37.30 How Echolink and IRLP work
 
53.40 New location for Kings County Radio Club field day this year
 
   
   
5
QSOs from 146.850 repeater Long Island NY
 
 
 1303
June 27, 2010
1
4.21 LIMARC gets a new repeater antenna
 
 
10.33 Vertical stacked co-linear antenna examined
 
20.29 The lifespan of a repeater antenna
 
23.49 The dismantling of the old LIMARC repeater antenna and setting up the new one
 
33.28 Dynamic Signal Analyzers and different types of spectrum analyzers
 
40.55 Ways to use a Vector Network Analyzer
 
   
 
2
0.10 Idiosyncrasies of vector network analyzers, scalar analyzers, spectrum analyzers and dynamic signal analyzers.
 
19.03 Setting up a vector network analyzers with dual displays for Yagis
 
27.20 Mel reviews Kings County Radio Club Field Day 2010
 
31.03 WS2N reviews LIMARC's 2010 field day
 
32.04 Reverse engineering a tri-band yagi
 
   
 
3
12.39 Impedance matching a tri-band yagi to work on another band
 
26.02 Add-on kits for tri-band Yagis
 
35.11 The effects of using an open wire line, tuner, and linked coupling
 
40.50 Shunt feeding towers
 
46.51 Ham shares experience with the TA-33 antenna
 
   
 
4
0.21 How many turns of RG8 cable to make a poor man's antenna
 
18.40 How reactance and impedance are effected when the angle of a dipole changes
 
34.10 When would a voltage balun be of better use than a current balun?
 
   
 
5
  QSOs from 146.850 repeater Long Island NY
 
 
 1304
July 4 , 2010
1
2.52 Ham has problems with Collins 62S1 transverter that will not neutralize, socket problems
    16.17 Collins SK610, SK620, and SK630 socket installation and replacement
    26.50 Vector signal analysis discussed
    31.00 Different types of Tesla coils
    35.11 The making of a tesla coil owned by a ham and measuring a tesla Coil with an oscilloscope
       
 
2
1.46 Do you use a Vector network analyzer with a Tesla coil?
    5.30 Rohde and Scharz analyzers
    10.31 The pros and cons of buying used equipment
    19.40 NS2N Space Report: Supply ship fails to dock at the ISS. NASA's Curiosity Mission
    47.00 Did any NYC TV stations have to change their antennas for greater bandwidth?
    53.15 Experiences when using a beam and rotator to get DX DTV stations
       
 
3
8.44 MELS EMAIL 01: (Cont' of the duplicate antenna email from 100620tech-002) What is electrical tapering?
    14.32 Diameter of a radiator vs. a reactive component (The Brown and Woodward Curve) Sites mentioned wa1mba.org and K2RIW dipole information
    17.30 Apple Iphone antenna problem
    28.32 The real meaning of signal strength meters on GSM systems
    42.19 Cellphone signal multipath and trilateration
    54.13 MELS EMAIL 01: What is electrical tapering? Revisited
       
 
4
5.01 MELS EMAIL 02: How do you measure antennas in degrees?
    15.39 How do you measure current with a Worslorm-based (tungsten) bulb?
    24.25 Fun with an RF sniffer
    28.01 Is air and insulator or a conductor?
    31.29 Updates on cell phone exposure research and new laws passed.
    44.24 Antenna problems with the Apple IPhone4
    47.04 Rules of emailing Mel
    51.01 update on the Bayville NY cell phone exposure scare
       
 
5
  QSOs from 146.850 repeater Long Island NY
       
1305
July 11, 2010
1
3.57 Ferrell Resonance discussed
 
23.12 Modes of Ferrell Resonance
 
30.50 Ham has phone in shack that caused RF interference - how common is this?
 
67.54 MELS EMAIL 01: Does the diameter of a vertical element effect performance?
 
   
 
2
0.00 Using stainless steel as a contact surface
    5.05 The resonance of a 90 foot tower when a vertical 160m wire is dropped from the top.
    18.19 MELS EMAIL 02: Rotary dipoles - What can you expect from the difference in changing its azimuths?
    36.00 Traveling wave tube amplifiers for the GHz range
    44.10 Periodic Permanent Magnet Tubes vs. traveling wave tubes
    46.16 N2EO has Collins 52S1 that has more power out on 2m than 6m
    52.37 Linked coupling circuits
       
 
3
9.20 Can a Diamond Quad channel 6m-40m rated at 500W - can it tolerate 1000W PEP?
    16.58 Diameter of a copper resonator and the Eddy Current effect
    25.21 Measuring the secondary windings of a Tesla coil
    30.00 The B H Curve explained
    33.44 The permeability of magnetic material
    50.41 MELS EMAIL 03: Ham found a large TVRO dish in attic - can he use it for anything?
       
 
4
0.00 Paul Wade's on line book - good source on how to make a feed horn
    4.40 The mounting of a TVRO dish
    7.00 Books and websites on feed horns and amateur radio microwave info
    9.31 Amateur radio moon bouncing
    15.10 Interesting article in July 2010 QEX p55 on sleeve dipoles and the altitude above ground
    22.50 Interesting article in July 2010 QEX p39 on how a TVRO dish can be used for astronomy
    24.11 Update on the ham who turning an antenna on a 10 foot pole
    26.31 Interesting article in July 2010 QEX p55 on sleeve dipoles and the altitude above ground revisited
       
 
5 
QSOs from 146.850 repeater Long Island NY
 
 
 1306
July 18, 2010
1
5.10 Resonance in components and circuits
    10.01 Capacitor reactance and inductor reactance
    18.51 Resonance and parallel LC networks
    26.45 Q and Loading Factor explained
    37.20 Instruments that continuously record power line in magnitude and time
    45.13 William Beaty's website http://amasci.com/me.htm good source for correct info on electronics teaching
    56.05 Electronic equipment that handle spikes
       
 
2
6.33 KE2EJ-: Isobar - a good spike protector
    10.27 MELS EMAIL 01: What is a good 2m base antenna for new hams?
    18.10 Tesla coil related websites to check out.
    22.53 What is the maximum drive for a 900 MHz repeater amp?
    48.10 Back feeding amps
    52.30 Advantages of using a traveling wave guide
       
 
3
1.05 N2EO recommends Flitz for restoring copper face plates
    2.30 Are there economic ways to make a high-powered 6m and 2m amp?
    5.16 Dick: 4CX250B is a popular amp tube for 6m and 2m
    8.39 The Coaxial Triode GS3ID tube
    16.10 QEX Magazine July/Aug 2010 p. 35 article on an antenna made out of a coax cable
    22.20 How the QEX antenna is similar to a bazooka antenna
    27.49 Examining the choke of the QEX July/Aug 2010 p. 35 antenna
    29.10 Should a balun be used with the QEX July/Aug 2010 p. 35 antenna
    33.45 Finding the equivalent circuit for a 1/2 wave dipole
    48.20 How long should the stub be for the QEX July/Aug 2010 p. 35 antenna?
       
 
4
1.51 Ham touches non-grounded MFS5000 repeater, then the ham fixes the grounding- was the missing ground inducing voltage?
    24.10 Sony 2010 radio would have a hum if you used a non-Sony AC adapter- why?
    31.00 Who should be credit for inventing the cell phone?
    35.50 The invention of the walkie talkie
    38.06 A Vector Network Analyzer is also a signal generator
 
 
45.50 Benefits of a Vector Network Analyzer over a Scalar Network Analyzer
 
 
 
 5
QSOs from 146.850 repeater Long Island NY
 
 
 1307
July 25, 2010
1
3.50 What is a scattering perimeter?
    12.43 S1, 1 and S2, 2 defined
    14.19 Rating transistors
    18.31 Every S perimeter is a vector
    21.55 Mel defines the S Curve
    30.22 Most spectrum analyzers are scanning receivers
    42.36 Building a linear amplifier
    45.49 Is there an advantage of having a wire that is a spiral wound around the whip of an AM car radio antenna?
    54.05 A debate over the tuning of a ferrite loop stick transistorized radio
       
 
2
0.40 Is there an advantage of having a wire that is a spiral wound around the whip of an AM car radio antenna? Revisited
    4.33 Von Karman (sp?) Street Effect explained
    7.46 The effects when adding a wire to an AM antenna
    11.19 The history of loop sticks and air variable capacitors
    21.34 MELS EMAIL 01: A ham keys up and his SWR goes down - is the rig and auto tuner OK?
    29.13 Air variable capacitors in early car radios
    41.13 How can you test a wall wart with a meter?
    46.40 How do you test a wall wart when batteries are involved?
       
 
3
3.46 Under voltage lock-out systems
    8.24 KE2EJ: Why a ham was not receiving NYC DTV CH13 correctly due to cell site
    19.15 How can you test a wall wart with a meter? revisited
    22.09 Scientific America Aug 2010 good article on "Planets We Could Call Home"
    25.04 Variable chargers that change polarity sold at Radio Shack
    26.39 Intelligent chargers
    31.54 A sun was found that is 325x the size of our own sun
    39.00 Can an HDTV active antenna be used for scanners?
    48.11 What happens when you add gain to an antenna
    50.40 Rotators that a controlled through the coax cable
    55.19 Time domain and its relation to DTV signals
       
 
4
3.01 Comparing different NYC TV station reception
    11.10 Frequency separation of DTV signals
    18.42 Antenna rotation for DTV reception
    23.39 Dick talks about his DTV reception and the role LaGuardia airport plays in it
     
 1308
August 1, 2010
1
10.25 Using a vector analyzer for S Subscipt 1 1 Calibrations
    23.10 Measuring the internal length for a short circuit and a closed circuit by a vector analyzer
    29.20 J1 and J2 ports of a vector analyzer
    31.10 KE2EJ reviews N2XJN's test equipment at N2XJN's house.
    43.51 Directional couplers for the HP4194 analyzer
    59.12 MELS EMAIL 01: Building a 4 element Quad for 2m - can we feed the driven element on the side for vertical polarization?
       
 
2
4.14 Can a 4 element quad boom be metal?
 
8.40 Aluminum wire vs. copper wire for a quad antenna
 
18.50 Does a quad antenna have to be made of metal?
 
26.30 4 element quad vs. a 4 element yagi
 
28.34 Research hams have done on yagi performance
 
39.05 Restoration of the SB220 front panel
 
49.02 3-500z tubes that were used with the SB220
 
50.10 TechNet listener claims that DTV channels 5.1 and 5.2 are on two different frequencies
 
   
 
3
10.01 The location and lobes of NYC are TV Broadcast antennas
 
23.12 Status of cell phone TV service "flow"
 
26.50 Screen room and magnetic plane waves
 
31.40 Ham receives DTV DX signals from Iowa
 
35.09 DTV pilot tones and adjacent bandwidth specifications
 
37.20 Spectrum Analyzer switching device which allows you to display 2 separate signals
 
52.40 Measuring test cable impedance with a spectrum analyzer
 
55.09 A Termination Internal Device explained
 
   
 
4 
4.07 4 ways to find out a coax cable's real impedance
 
 
10.19 Uses of a Time Domain Reflexometer
 
 
22.16 Stinehelfer Technique explained
 
 
23.50 Uses of a Time Domain Reflexometer revisited
 
 
26.10 Pointing Vectors explained
    30.09 Uses of a Time Domain Reflexometer revisited
 
 
37.00 Testing antenna built with a passive linear components
 
 
43.10 Uses of a Time Domain Reflexometer revisited
 
 
46.50 Sine Square Wave Generators and Higher Harmonics
       
 
 5
QSOs from 146.850 repeater Long Island NY
 
 
 1309
August 8, 2010
1
4.40 Tech Net host Dick K2RIW receives the ARRL National Technical Service Award
    8.48 The difference between Torroidal Cylinder windings, Sine waves and Square waves
    17.50 DC offsets, odd harmonics and resonance characteristics
    22.45 The importance of the winding going through the hole of the torroid
    34.18 Concerns over the dampening effect of ferrite material
    40.38 Four different combinations of windings
    46.40 Who really filed the first radio patent
    49.00 The importance of the ringing effect of the secondary winding
    55.31 Disturbance of a magnetic field around a receiving antenna
       
 
2
6.15 MELS EMAIL 01: Are there any amateur radio uses for old Dish Network dishes?
    11.08 Can your modify the LNB on a Dish Network dish?
    15.20 The complexity of an LNB
    19.31 How do you test a Dish TV converter box to see if it works correctly?
    35.24 The small cutting edge group of hams that regularly experiment in the GHz range.
    41.36 Can you bounce a signal off a satellite?
    44.31 Is these any legality of receiving frequencies such as cell phone or lunar transmissions
    47.01 Examining the Communications Act of 1934
    55.05 Looking at the Iphone 4 antenna problem revisited
       
 
3
3.30 SPACE REPORT: Space walk required to repair ht e ISS cooling system
    31.37 Astronauts using their jet packs to get back to the ISS is no guarantee of a safe return
    56.10 Correlation between gate and phase and calibrating phase shift
       
 
4
4.20 Aug 2010 IEEE Magazine article on 3d hdtv
    6.17 Ham would like feedback on the Ultimate Compact HVU-8 80-10m antenna
    10.10 Dick and Mel suggest listening to the TechNet on amateurradio.tv June 20, 2010 #2 32:23 for testing antennas
    13.39 Ham has problem when her connects his spectrum analyzer to a HP3585A pulse generator with a 50 Ohm cable
    20.41 The matching of the 7 element 6m beam M2 that will be installed on a tower
    30.00 The making of 3D HDTV
    36.40 Why do people bump into things after watching a 3D show?
    45.30 Possible legal issues with 3D HDTV
    56.15 Mel talks about his stereo camera
       
       
 
5
  QSOs from 146.850 repeater Long Island NY
 
 
 1310
August 15, 2010
1
37.54 Tesla coil experiment (2 coil 1 clockwise , 1 counter-clockwise
    42.54 Dick shares his experiment that had a 2 plate capacitor not with a coil
    49.08 A kick coil is examined
    51.02 Welsey continues with his experiment observations
    52.50 Dick speaks of a mysterious charge in a high capacitor 1500v experiment
       
 
2
0.00 High voltage capacitor experiments
    3.50 Experiment with a 150W light bulb that lights very bright w/ 2.7 watts on apparatus
    14.18 Effects on non-stable floating coils with excess power
    21.00 Group discusses a You Tube video on wrapped coils
    24.39 Dielectric Absorption defined
    30.11 MELS EMAIL 01: What do you suggest for an attic crawl space antenna for HF?
    42.11 How aluminum foil was used as an antenna
    49.40 The effectiveness of using aluminum foil vs. a wire for an antenna
    50.01 Expanding the width of a dipole
    54.00 Antenna experiments with full-size loops
       
 
3
0.30 Common Mode vs. Differential Mode
    5.32 Full wave loop experiments with Mel
    11.36 Common Mode, Differential Mode, and polarization
    18.27 End fed antennas and common mode
    24.47 Resonate points in dipoles and loops
    26.30 Locking a tracking generator with two spectrum analyzers
    36.11 Spectrum Analyzer sweeping
    42.50 WS2N Paul SPACE REPORT: ISS Ammonia pump repair continues, Rover updates
       
 
4
16.30 Bob Greenberg's experiments with light bulb with mysterious lighting
    19.14 Presentations by Art Greenberg
    22.32 The light bulb used in Greenberg's presentations
    29.00 Are gas frequencies sensitive?
    32.45 Voltage, vacuum variables and noble gases
    35.10 Back filling objects with dry nitrogen
    41.20 Doubling the air pressure and the dielectric strength of cable
    55.11 What's required before an arch over
       
 
5
  QSOs from 146.850 LIMARC LI, NY repeater
       
1311
August 22, 2010
1
11.50 2 port vector network analyzers examined
 
20.30 Mel builds on Dick's definition of a 2 port network analyzer
 
21.30 Vector network analyzer cable calibration procedures
 
24.01 Vector network analyzer port 1 vs. port 2
 
25.34 WA2YYY has incandescent lamp that glows when testing an RF amplifier
 
28.21 Pation (sp?) Curves defined
 
29.43 Bayonet bulb filaments
 
33.31 Art Greenberg presentation on yagi antennas reviewed
 
40.15 Current vs. gas flowing through the filament
 
44.03 Looking back at the early days of tuning a transmitter with a pencil
 
45.49 Mel: When the PL205 bulb ionizes
 
50.05 Dick and Joe WA2YYY, Glen KC2QIQ discuss the type of bulbs they used in his experiment
 
59.01 New ham wants to learn more about SMA connectors for a 2m handytalkie
 
   
 
2
3.00 The advantages of an SMA connector cable for a handytalkie
 
17.17 MELS EMAIL 01: What are some good QRP travel antennas?
 
22.01 Using a tuner for QRP operation
 
29.39 Using a telescopic fiberglass pool instead of a sling shot or a rubber ball method
 
31.10 Slinky, alligator clip, and fishing pool suggestions for better antenna performance
 
38.30 Problems bringing a fishing pole to a park to set up an antenna
 
53.11 Other antenna launching equipment ideas
 
   
 
3
0.00 Ham concerned over transmitting / receiving on his club's 2m/400 repeater tower
 
22.50 Testing repeaters with dummy loads and directional couplers
 
31.05 When a Mirage amp is used for a single site repeater
 
40.21 SPACE REPORT WITH WS2N Paul: The unmanned Dawn Mission, Mars Science Laboratory update
 
54.53 Ed Weatherhold technical correspondence
 
58.40 Was the weight of the earth always the same?
 
   
 
4
9.45 Will there be a weight change in an object after it is burned?
 
10.10 What role does the Sun play in the earth's weight?
 
12.14 Dawn and Vista space mission to 2 asteroids continued
 
19.10 A Return Loss Bridge examined
 
28.15 How do you predict the performance of a directional coupler?
 
42.00 What happens if you use a 10db 1GHz coupler on 10kHz?
 
50.10 Using an analyzer's A1 and A2 when testing CW
 
   
 
5
  QSOs from 146.850 LIMARC LI, NY repeater
 
   
1312
August 29, 2010
1
5.29 Article and You Tube video on Scalar wave experiment on 7.2 MHz
 
23.03 Using Steinhelfer technique to test your transmission line
 
35.47 Mel shares his Time Domain Reflexometer experiences
 
40.01 The Return Loss Bridge examined
 
50.25 When you connect the wrong antenna to a repeater
 
51.51 How can you test a used balun at a ham fest?
 
57.50 What is the life span of a Rohn Tower?
 
   
 
2
5.05 Galvanizing paint reviewed
 
9.40 How to test used balun to see if it is good revisited
 
10.50 Anti-rust products for towers
 
13.52 Beware of tower rusting from the inside out
 
19.15 A new type of ham tower that rests on a ball
 
24.03 Dateline News TV segment on "Tower Dogs"
 
27.00 MELS EMAIL 02: What is a good novice or home-brew telescope for an amateur radio club?
 
39.41 University of Michigan book good source for binocular info
 
40.09 Astronomy clubs in the NYC tri-state area
 
43.10 Questar telescopes examined
 
46.25 Praise for book by Suiter (sp?) "Measuring the Optical Quality of a Telescope"
 
51.02 Astrophotography equipment
 
52.51 Levels of telescopes
 
   
 
3
3.06 Measuring characteristic impedance by looking a t the launched voltage
 
12.45 When rotating a vertical antenna, does the doughnut pattern change?
 
23.05 Why FM co-channel interference is better than AM
 
32.02 SPACE REPORT: Voyager still communicating with NASA after 10 billion miles, Kepler update, ISS update, Dawn Spacecraft ion engine questions answered
 
 
   
 
 4
14.10 Dick: How weak a signal is useful
 
 
15.10 SSB vs. AM "The 9dB Advantage" The Difficult Comparison
 
 
18.50 Praise for book Meesha Schwartz "(McGraw Hill) Information, transmission, Modulation and Noise."
 
33.09 Decoding the digitized signal from a GPS
 
47.50 All about digital "Gold Codes"
 
 
 
 5
QSOs from 146.850 LIMARC LI, NY repeater
 
 
 1313
Sept 5, 2010
1
5.40
N2XJN presents two Youtube videos "Variometer Video #1" and "Variometer Video #2" experiments
 
 
6.07
Mysterious operations of a variometer and a vector impedance network analyzer
   
22.50
Examining N2XJN's variometer that was used in the YouTube videos
   
27.42
Mel and Dick discuss Mel's experiences with his variometer
   
38.20
WWII ARC 5 transmitters and their variometers
   
50.05
Solar sunspot activities and "The NASA Disconnect"
   
52.00
The effects when a magnetic field moves
 
 
 
2
2.15
Decoupling capacitors and their relation to free energy
   
15.24
Alternative sources of energy ignored by man
   
17.50
Mel modifies solar charged night lights and makes solar hot water
   
21.44
Mel: There is no motivation for society to leave coal and oil
   
28.30
MELS EMAIL 01: What is antenna resonance?
   
39.05
Mel defines self-resonance
   
45.00
Self resonance and the Q Factor
   
49.50
Reasons to tune your antenna
   
59.21
The quality of an impedance match
   
 
 
3
0.05
The SWR reading doesn't tell the whole story
   
8.01
Tuners and what they cover on the Smith Chart
   
9.30
SPACE REPORT: Ares booster rocket, "Packing for Mars" book, ISS tour on YouTube, the Biosphere experiment whtat was conducted in Arizona
   
27.45
How do you measure a magnetic field of a magnet?
   
 
 
4
0.50
Inside a permenant magnet?
   
3.19
Examining two permenate magnets in a form of torroid with Wesley
   
11.15
Wesley: We know there are rare earth magnets but is there such a thing as "rare earth springs?"
   
16.26
Does a magnetic field disappear at absolute zero?
   
17.50
Neodymium magnets
 
 
21.05
Dick explains a possible theory of why Wesley has to do a 5khz offset for every Tech Net
 
 
38.36
Neodymium magnets
 
 
44.26
Variometers vs Link Coupling Systems
       
   
5
QSOs from 146.850 repeater Long Island NY
 
 
 1314
Sept 12, 2010
1
2.43
NTIA videos good source for info on KTB noise power bandwidth and spctrum analyzer design
Web address: www.its.bldrdoc.gov/talks/rf/notes
   
6.30
To check present action on Echolink and IRLP activity on LIMARC the web address is: status.irlp.net then find node #9126
   
13.54
Hams questions how many TechNet show have aired
   
16.21
Watching a DTV signal on a spectrum analyzer, examining peak to valley ratios and the role of multipath
   
31.47
The effects of signals when a filter is added
   
42.10
Examining the location of the local NYC DTV transmitting antennas
   
51.40
WA2YYY gives out the DTV frequencies that had peaks and dips
   
54.25
MELS EMAIL 01: What tuner would you use for a normal dipole?
   
 
 
2
13.20
QEX Sept/Oct article on impedance matching
   
23.30
Mel discusses measurements by adding a 25 ohms resistor to the circuit using a bridge
   
31.52
Dick: The advantages of having a calibration kit for your antenna
   
42.31

Update on Wesley's experiments on transfering of energy

   
49.45
Discussion on the experiment on the amount of energy that a magnet puts out
   
 
 
3
6.13
Can you see the stress of the fibers when you force two magnets together?
   
13.40
Comparing wire gauge strength by calculating ratio, area and diameter if a 14 gauge dipole vs an 18 gauge dipole
   
32.50
Thermal Time Constant explained
   
42.09
What type of wire gauge is used for standard dipoles?
   
48.31
Telephone pole wire insulators
   
50.11
Mel shares the design of his antenna wire and pulley system
   
 
 
4
01.15
Utilizing PVC pipe for a dipole spring
   
24.38
How do you sweep an antenna?
   
30.39
Comparing different SWR meters and the different uses of SWR meters
   
45.17
Have we made any progress in differencial energy vs. energy in magnetic fields?
   
 
 
 
5
Extended TechNet and QSOs from 146.850 repeater Long Island NY
 
 
 1315
Sept 19, 2010
1
4.04
Wesley speaks of his Eddy current/copper pipe experiment
   
20.47
When you put your body through a magnetic field
   
22.58
What really is a magnetic field?
   
27.10
Wesley suggests another scenario with the Eddy current/copper pipe experiment
   
37.50
Eric shares his experience of his pure copper pipe experiment
   
46.18
Eric suggests how to fill an air gap with a magnet
   
49.50
Ham with new General privileges needs a suggestion on a middle of the road HF rig
   
 
 
2
1.32
Another ham would like suggestions on a good HF base antenna i.e. Gap Titan
   
3.51
A fanned dipole was suggested for a good HF base antenna
   
22.40
Andy shares what antenna he uses for Dxing-The Titan vs. a beam antenna
   
35.00
MELS EMAIL 01: What is perpetual motion?
   
44.40
Over unity discussed
   
49.10
MELS EMAIL 01: What is perpetual motion? revisited
   
55.06
Polycom Conference Call unit and a 60Hz hum problem examined
   
 
 
3
15.10
RF and magnetism in relation to a circulator
   
22.29
Importance of a final filter when youíre sharing a building top with other antennas
   
26.10
The importance of a circulator
   
35.37
RF and magnetism in relation to a circulator revisited
   
38.40
Dick explains Precession
   
46.41
Geotrophy explained
   
48.15
Mel explains what a circulator is in detail
   
 
 
4
11.00
SPACE REPORT w/Paul WS2N: 2 shuttle missions left, ISS update, Tesla newspaper article
   
29.34
What cable do I buy for a Diamond 1.2 GHz antenna- LMR 400 or Hardline?
   
34.34
Frequency Ranges of Software Driven Spectrum Analyzers
   
37.10
High praise for the Signal Hound Software Driven Spectrum Analyzer
   
43.22
Dick reviews the remote airplane NEAT Fair
   
46.47
Is the magnetic field between two attracted magnets static or dynamic?
       
 
 5
QSOs from 146.850 repeater Long Island NY
 
 
 1316
Sept 26, 2010
1
2.00
New cell tower passed in Hempstead NY will be discussed in this TechNet
 
6.11
Some experiments Wesley conducted with Neodymium magnets
 
15.30
Electronic resonators explained
 
22.08
Looking more deeply into a spark gap
 
23.58
Studies done by using the Pasten Curve
 
32.31
Multi-Pactor effect and the perfect vacuum
 
38.50
How can a US ham operator legally operate Canada when visiting
 
46.10
Phase Shift Measurements with Vector Voltmeter and an oscilloscope
 
57.00
How do you improve DirectTV satellite TV reception- should the size of dish be increased?
 
57.34
ARRL Award Dinner for Dick will be held in NJ at a restaurant Biogeio (sp?)
 
 
 
2
10.34
Hams share experiences of C Band and Ku band satellite reception interference by weather and trees
 
21.01
Disadvantages of using a center-fed feed horn
 
34.30
What will deliver better reception- 2 18" dishes or 1 36" dish?
 
42.50
MELS EMAIL 01: How do you select the proper balun for a dipole?
 
55.01
Jerry Civic's (sp) balun studies
 
 
 
3
4.10
Mel: You may be able to skip using a balun on 160m to 40m
 
14.00
WS2N shows how to make a balun with parts from a hardware store.
 
18.05
The poor man's balun that just requires turns of the wire
 
21.51
Hempstead NY passes cell site ordinance
 
40.10
Research that has been conducted re: radiation on human tissue
 
53.22
Unfounded cell tower RF exposure in Hempstead NY and Bayville NY
 
 
 
4
15.02
Website that has list of all cell phone models and their RF exposure rates
 
19.50
Ham lists recent pseudoscience products on the market
 
26.20
Ham reads double standard excerpts from Moms of Merrick website
 
31.20
The reality of cell tower RF exposure
 
48.13
The experiment including 2 aluminum foil balls on support wires on 2 inverted L antennas
 
51.13
Koolance's Law (sp?) explained
 
 
52.13
The experiment including 2 aluminum foil balls on support wires on 2 inverted L antennas revisited
 
 
56.30
The Influence Effect discussed
 
 
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
 1317

Oct 3 , 2010
1

4.30
Measuring the resonance of a ferrite by itself
   
5.30
Fluke 5205A Calibration Amplifier question that will be discussed at 25.42
   
9.42
Measuring the resonance of a ferrite by itself revisited
   
17.01
How a good dip meter works
   
19.31
Using torroid testers to test cores
   
25.42
Dick: The Fluke 5205A Calibration Amplifier is really an operational amplifier
   
31.10
Sine waves, square waves experiment with the Fluke 5205A Calibration Amplifier
   
47.02
Crossover distortion in relation to operational amps
   
53.02
Setting up and weather proofing a 10GHz antenna on a GlenMartin tower.
   
 
 
2
6.08
Are they any monthly publications dedicated to 10GHz?
   
7.20
Precautions of using different 10GHz dish sizes
   
10.00
What portions of the 80m band is allocated for Generals and Extra hams?
   
21.40
A ham interesting test results with a vertical dipole vs. his GAP vertical
   
29.15
Praise for BIGSHOT by wtsherrilltree.com for throwing up high lines in trees
   
33.31
WS2N SPACE REPORT: New exo planets found 20 light years away
   
38.17
Oct 2010 Scientific America article on the James Webb Telescope and the Red Bull Spacesuit venture
   
59.54
MELS EMAIL 01: Honeywell wind power turbine presented to Mel this week
   
 
 
3
9.15
The design of the Honeywell Wind Turbine
   
21.30
The Long Island politics of building wind turbine farms and solar panel farms
   
25.09
The wind/wattage/noise efficiency of wind turbines
   
51.40
The politics of alternative energy advancements
   
 
 
4
7.15
The fuel efficiency of Ethanol
   
13.40
Automobile engine block heaters
   
27.45
Minnesota ham talks about his local Tech Net
   
37.30
The "30/30 Arctic Rule"
   
42.00
Pulse Forming network explained
       
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
 1318
Oct 10 , 2010
1
4.04
Wesley's and John's experiment involving 3 long pieces of wood with straight wires attached.
   
14.10
Examining the type of wire attached to the wood
   
21.45
Half Voltage Technique explained
   
23.36
Alan's G5RV vs. the GAP Titan Vs. the vertical dipole testing continues
   
27.21
Dick explains Line Sync on an oscilloscope
   
33.23
Raising the Gap Titan higher off the ground - will it increase performance?
   
36.00
Will adding ground radials to a vertical dipole increase efficiency?
   
43.58
Examine the design of the Gap Titan in more detail
   
46.35
Using a ground plane with an elevated vertical antenna - what pushes against what?
   
54.40
Will a 90' end fed antenna held up by two trees be good for 80m?
   
 
 
2
0.00
Determining the impedance range of an antenna tuner
   
5.20
New 2m AM repeater in NYC area
   
20.09
Programming older rigs for the 1MHz difference for an AM repeater
   
26.50
Repeater coordination considerations for the new NYC AM repeater
   
41.32
MELS EMAIL 01: Please explain the use of a Spotting Scope for a Telescope
   
54.30
How to carefully observe the sun with a telescope
   
 
 
3
11.10
Sky and Telescope magazine has good guide to monitor Jupiter's moons
   
14.18
New binocular accessory for astronomy
   
16.10
Hams share experiences using telescopes near earth's surface
   
21.21
New astronomy software for the IPhone
   
28.10
Is there an advantage in running a linear amp off of 220v?
   
37.55
WS2N SPACE REPORT: 3 people to 6 people on the ISS, psychological tests given to astronauts
   
 
 
4
7.02
Is CSETI listening to the right signals?
   
15.10
Driving a Class AB1 from a cathode
   
30.32
All about machining ferrites
   
59.02
YIG Filters explained
     
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
 1319
Oct 17 , 2010
1
2.05
Three Phase Power examined
   
18.22
Phase Motors discussed
   
19.01
Phase Power and how it relates to residential homes
   
24.31
Solid State Cyclo Converters, rotary machines and single phase motors
   
33.13
Rebuilding electric motors
   
45.45
N2EO's Yeasu FT-1000 arrives DOA- was it hit by strong x-ray machines at UPS?
   
56.04
Components that are effected by x-rays and/or electro static
   
 
 
2
0.00
Electro static dangers when packing and shipping electronic components
   
13.37
2m and 70cm simplex frequencies listed at ac5v.com
   
20.32
Ham can not tune his dipole - why?
   
24.51
Analyzing you antenna from the ground with binoculars
   
28.01
Hams share UFO sightings up close
   
48.42
NASA's search for exoplanets
   
52.39
Dick: Searching for Jupiter's moons again
   
54.57
Mounting a camera to the eye piece of the telescope
   
 
 
3
1.46
Analyzing you antenna from the ground with binoculars revisited
   
7.29
Dick shares what it's like being a top of his tower
   
17.50
High-end digital SLRs can be used as a telescope
   
26.01
Wesley - Uses of homebrew Quake forms
   
38.58
Wesley explains uses of Tex Tilite (sp?) and torroid
   
50.15
The making of torroid
   
 
 
4
0.50
Grinding ferrite material
   
11.10
The magic of paper dust
   
17.51
Rust and its effects on ferrites
   
24.30
Aluminum oxide cores
   
25.15
Aluminum , copper, and magnetic fields
   
38.46
Dick shares an experiment that includes a solenoid rod
   
55.44
Chokes with zig zag pancake windings
 
 
   
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
 1320
Oct 24 , 2010
1
7.40
Wesley's and John's latest update of a variable frequency drive and how altitude effects it
   
21.31
How Stepper Motors operate
   
28.05
Mel shares his radar motor that washed up on shore
   
32.09
Advancements In brushless motors
   
36.29
CMC machine technology
   
40.32
Linking into and existing Cablevision cable to make a second part of a dipole
   
51.34
Electricity and cable line placement on telephone poles
   
56.50
Mel shares how his electricity is laid out on his street
   
 
 
2
9.01
Financial incentives for efficient AC on Long Island conedhvacrebates.com
   
15.40
Hams share stories of horrible utility service on Long Island
   
21.54
Ham needs advice on the reflective power rating on his LP-100A meter 335 kit
   
34.46
MELS EMAIL 01: T network meters vs. L Network meters
   
49.10
Ham has roller inductor complaint with his MFJ antenna tuner
   
53.57
QST Feb 2003 article on the most popular antenna tuners on the market
   
 
 
3
1.15
KE2EJ Eric wants to plot a pattern of a phased array
   
21.25
Ham wants to submerge a magnet into liquid nitrogen and measure the results
   
27.01
The Hall Effect and Crazy Temperatures
   
41.00
Measuring the permeability of materials
   
 
 
4
4.02
W2FMI Jerry Civic (sp?) articles on electronically small antennas, torroid limits, and binder damage
   
8.30
Mel suggests reading Ham Radio June Magazine "Torroid Permeability
   
32.30
How accurate is your inductance bridge?
   
38.20
Ham wants to buy an electron microscope- what should he look for?
   
40.00
Examining scanners and tunneling microscopes
   
47.23
Looking at old RCA microscopes
       
   
5
QSOs from 146.850 repeater Long Island NY
       
 1321
Oct 31, 2010
1
4.50
Is the LIMARC repeater an open repeater?
   
15.53
Review of Levittown NY ham fest
   
19.53
Update on Neodymium magnet experiments by Wesley and John
   
26.25
How a counter directional coupler works with a Bird Wattmeter
   
37.10
Directional Couplers used with solid state amplifiers
   
48.20
Setting up a threshold circuit (Schmitt Trigger)
   
56.40
Update on Alan's used Cablevision cable intended to use as a second half of a dipole (from 101024tech-002 40:32)
   
 
 
2
7.05
Review of Isotron antenna products an the infinitisible dipole principles
   
19.01
MELS EMAIL 01: Can I use a galvanized guy wire as a ground plain radial?
   
30.08
Ham modifies G5RV and discusses possible performance changes
   
36.30
The effects of the noise figure when the signal is close to the noise floor
   
52.50
MELS EMAIL 02: Do certain PVC pipe effect RF waves?
   
 
 
3
0.00
Testing PVC piping in a microwave oven
   
6.34
Making loss with phony gimmick capacitors use with a Yagi
   
17.40
John wants to use a waveguide with a microwave oven - which type of waveguide does he use?
   
29.04
WA1MBA website good source for waveguide size and selection
   
31.30
The waveguide's magnetrons tube and its specific voltage
   
38.40
Minimum and maximum power used at 2.4GHz used for John
   
49.45
Dick praises Radar Handbook by Skulnik
   
50.40
Using a control grid to control the magnetron
   
 
 
4
0.00
Using the Rekey (sp?) diagram to study a magnetron
   
2.34
The Flywheel effect explained
   
10.01
The means of regulated DC in newer microwave ovens
   
18.43
Dick shares how he thinks the bell housing works from Mel's schematic (from Ham Radio Magazine June 1977 article)
   
26.18
NS2N SPACE REPORT: STS133 update, The Leonardo Robot, The New Space X, NASA press kits, Chinas' future space plans
       
   
5
QSOs from 146.850 repeater Long Island NY
     
 1322
Nov 7, 2010
1
1.00
Review of the NYC Marathon
   
4.31
Magnetic Display Material
   
6.06
Ham has question re: 2 transmitters and an equally distanced position Doppler scanner
   
20.50
KC2LTY (LIMARC member) has problem with broken rig and if he should send it to the manufacturer
   
30.45
Simulating a VSWR Bridge
   
34.10
Vector Network Analyzer and Directional Couplers
   
 
 
2
1.40
Correct ways to model a directional coupler
   
8.50
Karl Muller info on directional couplers
   
12.36
Harlen Howe's book "Strip line Techniques" reviewed
   
16.08
MELS EMAIL 01: Testing the permeability of torroids Ham Radio Magazine article June 1977
   
37.20
WS2N Paul SPACE REPORT: Last shuttle is delayed, searching for space anti-matter
   
49.33
E Field vertically polarized waves and measuring the horizontal polarized magnetic field (H Field)
   
 
 
3
0.00
Free Space waves examined
   
10.50
Electronic engineers lack of magnetics knowledge
   
13.11
E Plane and H Plain patterns
   
25.01
The US Air Force definition of E Field and H Field Patterns
   
29.15
Nulls and Lobes of antenna patterns
   
36.10
Do electrons have mass?
   
41.50
Dick uses a scenario with starting his car with 120 amps at the starter motor (marbles wiggling through a pipe)
   
50.21
Positive and negative "sheets" explained
   
58.20
Pointing Vector defined
   
 
 
4
0.10
Permissivity (sp?) defined
   
3.40
Electromagnetism transmission of real energy
   
8.32
Attempts in measuring gravity waves
   
15.56
Does a gravity wave travel faster than light?
   
21.57
What is the velocity medium of gravity?
   
23.01
Using a transponder to measure distance
   
35.30
Permissivity, permeability defined
   
40.11
Phase relationships between current and voltage.
 
 
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
 1323
Nov 14, 2010
1
0.00
TechNet already in progress (1 hour late, power outage)
   
0.30
Differential mode vs. common mode with a loop antenna
   
2.50
Ham TAK-tenna is resonating, but not radiating - what's wrong?
   
33.10
Examining travelling wave antennas
   
40.25
Ham's HT can't reach repeater - why?
   
51.10
Ham needs an SMA adapter for his HT antenna
   
57.41
The importance of finding HT hot spots
   
 
 
2
2.46
Magnets and radio waves - a general discussion
   
10.10
People in Long Island towns that are scared of cell phone RF exposure
   
36.02
Aesthetics of cell phone antenna towers
   
42.31
Former Bayville NY resident examines attitude toward cell phone towers
   
48.10
What started the Bayville NY scare?
   
 
 
3
6.09
How the cell phone exposure scare started in Europe
   
29.30
DEW System in Canada, Motorola, and RF exposure
   
49.17
WS2N SPACE REPORT: A shuttle extension?, mapping dark matter, Alpha Magnetic Spectrometer
   
57.50
Is a cosmic wave an RF wave?
       
   
4
QSOs from 146.850 repeater Long Island NY
 
 
 1324
Nov 21, 2010
1
9.14
Wesley shares his unsuccessful long trip to buy a piece of equipment
   
18.00
Ferrite resonance examined in depth
   
37.11
Adler Locking explained
   
40.04
Ferrell Resonant Power Supplies and swinging chokes
   
54.45
Ferrell Resonance saturation characteristics
   
 
 
2
6.55
Transformer magnetic field shielding and grounding
   
17.03
Dick tells story of placing a screwdriver between two phasers
   
23.09
MELS EMAIL 01: Repairing a shortwave radio bandscope dial cord
   
40.58
MELS EMAIL 02: NY Times article "Snuggling with you cell phone" discussed
   
49.30
Status of three lawsuits in Bayville NY on removal of cell towers
   
 
 
3
1.10
Examining magnets inside hard drives
   
4.01
Different uses of rare earth magnets
   
10.09
Powerful magnetic motors used in scooters
   
13.20
Ham needs to extend his feed line 50 feet to his large G5RV-what should he use?
   
16.06
How the G5RV's ladder line effects its performance
   
22.50
QST article re: all signals hitting the ionosphere becoming polarized
   
30.20
Faraday rotation and the ionosphere
   
39.10
HAARP and DEW
   
46.35
Ham asks about Airport scanners and why no one is complaining about it
   
 
 
4
2.00
Putting two Bird Wattmeters in series in a transmission line
   
13.10
Dual directional Bird wattmeters used with slugs
   
21.26
Waveguides from Singer that Dick owns
   
26.19
The 104th Fl antenna on the Empire State Building
   
36.50
Speed of Gravity article in MetaResearch
   
47.17
Graviton Particles in relation to Jupiter, Earth and the Sun
       
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
 1325
Nov 27, 2010
1
1.12
rfi@LIMARC.org to report interference to the LIMARC repeater
   
11.39
Dick's understanding of a magnetic current
   
26.15
The similarities between a Tesla Coil and a Spark Coil
   
35.09
Wesley discusses Square Waves and Resonant frequencies
   
41.11
Dick discusses Inductive Kickback
   
45.52
The bandwidth of the resonance
   
53.09
Permeability, Saturation, Reluctance and Hysteresis
   
 
 
2
3.32
Hysteresis in detail
   
14.15
Reluctance discussed in detail
   
31.13
MELS EMAIL 01: Can I use several sets of antennas with one set of radials
   
44.30
MELS EMAIL 02: Does the angles of the radials that are slanted down from the vertical effect performance- and are 4 radials enough?
   
59.02
Mel's sloper experiment
   
 
 
3
8.45
Ham has to dipole loops opposite of each other -will they cancel the other out?
   
15.44
Putting a 600 OHM resistor at the end of the antenna
   
23.18
Mel compares the uses of his 80m loop and his vertical with 100 radials
   
31.20
Mel talks about his .1 wavelength long receiving loop antenna
   
36.00
Is a ferrite always needed for a low frequency antenna
   
45.10
Wireless chargers for cell phone - how do they work?
   
57.49
Drop in chargers discussed
   
 
 
4
1.00
Using RF IDs in charging devices
   
7.50
The operation difference between a Geiger-Muller and a Scintillation counter
   
18.40
Wesley explains why he is doing all of these experiments
   
22.50
Magnetic folds of air around coils
   
36.10
Wesley asks re: the scenario of a falling power line and a person on the ground
   
45.57
The Polarity of lighting
   
55.10
Galvanic action between 2 probes
       
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
 1326
Dec 5, 2010
1
4.42
Harmonic motion and it relation to devices such as epitrothoid and spirographs
   
20.40
Scenario re: 350Kw capacitor and its plate
   
28.31
What happens when you charge a 7000v oil filled capacitor
   
36.10
Core rotation speed vs. mantle rotation speed
   
39.40
What is charging our ionosphere?
   
43.57
SWR rating of a receiving antenna vs. the same antenna that transmits
   
56.53
What does a Bird Wattmeter, an MFJ SWR meter and a network analyzer have in common?
   
 
 
2
2.50
Differential mode vs. common mode from Mel's Antenna
   
8.05
MELS EMAIL 01: Does using a PVC effect the performance of the vertical of a ground based antenna?
   
14.10
Dick- Hams are the odd balls of society
   
17.05
The politics of keeping ham neighbors happy
   
22.22
MEL EMAIL 02: Is it practical to use 2 verticals with one set of radials?
   
25.50
Does using a copper pipe rather than aluminum for a vertical increase performance?
   
33.04
Constructing a bird cage for your dipole
   
36.01
Should you put multiple wires in a PVC pipe for a vertical?
   
36.56
Constructing a bird cage for your dipole revisited
   
43.55
Mel shares when he made an antenna out of copper
   
47.01
Inverted Doubler vs. an Inverted V antenna
   
52.30
Near field measurements of an open wire line vs. coax
   
 
 
3
9.24
Differential mode vs. common mode from Mel's Antenna revisited
   
12.25
Myths of open wire transmission line being a radiating structure
   
27.30
Ham has TS-2000A, a beam antenna but only tune on 17m - why? Cont to 50.01
   
30.02
Antenna grounding and Shack grounding
   
45.19
When to use an artificial ground
   
47.38
Inspecting your ham tower with a telescope
   
50.01
Ham has TS-2000A, a beam antenna but only tune on 17m - why? Mel suggests there is water damage
   
51.30
Dick and Mel suggest using a TDR to inspect the TS-2000A line
   
 
 
4
1.00
How do you get a hold of a TDR. Mel suggests some manufacturers
   
6.20
Good antenna books for the novice
   
9.45
SPACE REPORT: Organisms thriving in toxic environments/NASA select/Astronomical Imaging Seminar
   
39.20
Designing a horn out of galvanized sheet metal
   
53.01
Possible energy in the ionosphere
       
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
 1327
Dec 12, 2010
1
 
 
2
 
 
3
 
 
4
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
 1328
Dec 19, 2010
1
 
 
2
 
 
3
 
 
4
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
 1329
Dec 26, 2010
1
 
 
2
 
 
3
 
 
4
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
 1330
Jan 2, 2011
1
 
 
2
 
 
3
 
 
4
 
 
5
QSOs from 146.850 repeater Long Island NY
 
 
     

 

 

 

 

 

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