On 11/2/21 3:01 PM, Lux, Jim wrote: On 11/2/21 11:41 AM, Mpridesti via TowerTalk wrote: My 80 m 4 SQ seems to work well in 3 positions. To the SW the signal drop in the favored direction where the ot
On 11/5/21 9:35 AM, Dave Sublette wrote: I have one of these which I use to check SWR and measure component values. I love it. I know it is capable of doing more. I just haven't had a need to use it
On 11/6/21 7:30 AM, Michael Tope wrote: You can save raw impedance data to memory on the FA-VA5 while using it standalone in the field and then download it later to the VNWA software. The one frustra
73, Mike W4EF.............. yes. some of the newer versions have an SD card. Some of the older ones have the solder pads for the SD card holder, but no actual SD card socket. Ditto serial port. The
A few months ago, N4CC and I lost rotational control on one of our prop pitch rotators. Our rotators are wired with #10 AWG copper Romex. At the rotator, high-quality T&B copper ring lugs are crimpe
On 11/17/21 8:32 AM, Paul Christensen wrote: "For instance T&B CTL "copper one hole lugs, short barrel" are for "AWG stranded, flexible cable, welding cable, and portable cord." You have to hunt way
Solistrand Actually, it's now te.com, but PIDG is the series at Mouser referenced by W9AC, and the datasheet is silent on whether the size is stranded or solid. The T&B datasheet/catalog is clear - i
On 11/17/21 8:32 AM, Paul Christensen wrote: "For instance T&B CTL "copper one hole lugs, short barrel" are for "AWG stranded, flexible cable, welding cable, and portable cord." You have to hunt way
As I recall, past list debates concentrated mainly on crimp v. soldered RF connectors. In this case, each crimped Romex terminal lug failed with infinite measured resistance between the #10 wire and
73 Tim K3LR @ DX Engineering At some point, some other quad hybrid approach becomes more practical. And harder as percentage BW increases. I don't know that I would want to build a Lange Coupler for
Starting with version 5.0, EZNEC implements the capability to model lumped transformers, inductors, capacitors, and resistors. Thus, it should have capability to model the Collins 90deg hybrid. The o
yeah, but that doesn't help with the "how do I make an NT card that simulates a transformer" for NEC. 73 de Gene Smar AD3F Starting with version 5.0, EZNEC implements the capability to model lumped
On 12/21/21 5:53 AM, Pete Smith N4ZR wrote: Since my earlier posting, I have learned that since February, 2021, groups.io has charged for groups larger than 100 members. While I think donations could
If your vertical is out in the open on flat land and you have a wind storm, it will destroy plastic leg insulators and the ceramic ones hams find aren't made for this. Not sure about the fiberglass c
On 1/9/22 8:10 PM, Jim Brown wrote: On 1/9/2022 3:26 PM, Richard (Rick) Karlquist wrote: The grounds for these independent systems are subject to considerable voltage differences and will draw consid
On 1/9/22 8:22 PM, Jim Brown wrote: On 1/9/2022 4:48 PM, David Gilbert wrote: That's a different situation, of course, but certainly very true. I bet lots of people have multiple grounds connected t
I don't have any modeling SW nor experience with such SW. With that known, I have a question about a horizontal 1/2 wave dipole at a single height. I understand the radiation pattern for a straight d
On 1/11/22 12:16 PM, Jim Brown wrote: On 1/11/2022 2:04 AM, Ignacy Misztal wrote: At my new QTH, initially I set up inv U about 80 ft high with 4 125 ft elevated tuned radials about 10 feet high. N6
Additionally see: "A Closer Look at Vertical Antennas With Elevated Ground Systems" by Rudy Severns N6LF. He recommends 10-12 elevated radials as a minimum. Wes N7WS My ON4UN is not readily to hand
<big snip> 3) The On ground system on VERY POOR SOIL is only 1 db better than the FCP on Average soil. This one was a bit more of a surprise (intuitively) but also explains why some of the confusion