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Total 149 documents matching your query.

21. Re: Topband: FAA Extension, Safety, and Security Act of 2016 to affect (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Mon, 18 Jul 2016 17:52:24 -0500
Folks, this could be serious if a concerted response from hams and the ARRL to the FAA isn't made. Perhaps the few members of Congress who are hams can be prevailed upon to add a revision to a later
/archives//html/Topband/2016-07/msg00035.html (9,625 bytes)

22. Topband: DXE NCC-1 phasing box (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 23 Sep 2016 08:51:54 -0500
Hello, I am trying to set up a DX Engineering receiving antenna phasing box but there appears to be something wrong with it and I need to troubleshoot it. The manual I have does not have a schematic
/archives//html/Topband/2016-09/msg00080.html (6,967 bytes)

23. Topband: DXE NCC-1 phasing box (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 23 Sep 2016 08:59:19 -0500
update: I just received an email, perhaps a canned response from DX Engineering telling me they won't give me a schematic. In addition, rather than work with me to find the problem, they only offer t
/archives//html/Topband/2016-09/msg00083.html (7,807 bytes)

24. Re: Topband: DXE NCC-1 phasing box (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 23 Sep 2016 09:41:14 -0500
I just finished speaking with Tim K3LR on the land line with regard to my problem We had a cordial conversation and I must say in all the years I have been a ham, I have never had the president of a
/archives//html/Topband/2016-09/msg00085.html (8,487 bytes)

25. Re: Topband: DXE NCC-1 phasing box (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Sat, 24 Sep 2016 17:13:17 -0500
Since I started the thread I think I should post a follow up on what I found regarding the NCC-1 phasing network. I apologize for the late post. The past 24 hours have mostly been spent preparing for
/archives//html/Topband/2016-09/msg00109.html (11,866 bytes)

26. Re: Topband: Soldering radials? (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 13 Oct 2016 06:11:05 -0500
You don't use stranded wire for radials. 73 Rob K5UJ _________________ Topband Reflector Archives - http://www.contesting.com/_topband
/archives//html/Topband/2016-10/msg00065.html (7,919 bytes)

27. Re: Topband: Soldering radials? (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 13 Oct 2016 07:38:17 -0500
Stranded wire is harder to work with. It is harder to get to lay down flat either on top or in a trench, harder to bolt or solder, is more expensive, does not take high heat as well. ________________
/archives//html/Topband/2016-10/msg00067.html (8,409 bytes)

28. Re: Topband: Soldering radials? (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 13 Oct 2016 13:51:23 -0500
My experience has been the complete opposite. May have to do with which is hard drawn and which is soft. Rob K5UJ _________________ Topband Reflector Archives - http://www.contesting.com/_topband
/archives//html/Topband/2016-10/msg00072.html (8,777 bytes)

29. Re: Topband: inv. L (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 18 Oct 2016 05:14:44 -0500
I have a 50 foot aluminum mast on my property, guyed at 32 feet and mounted on a 6" x 6" pressure treated pine post. I put a 15 foot stinger of aluminum tubing at the top to give it a height of 65 fe
/archives//html/Topband/2016-10/msg00110.html (8,410 bytes)

30. Re: Topband: 160 m inverted L (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 8 Nov 2016 12:23:29 -0600
I have no idea what a "FCP" is, but it doesn't matter. 1. An inverted L is an _unbalanced_ antenna. Therefore you don't need a balun. 2. This means you can feed it with unbalanced line, i.e. coax. 3.
/archives//html/Topband/2016-11/msg00036.html (7,990 bytes)

31. Re: Topband: 160 m inverted L (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 8 Nov 2016 16:55:11 -0600
A vacuum variable for L impedance matching is unnecessary. Vacuum variable capacitors leak eventually. It take a long time for them to go through their ranges and you have to have the mechanics outsi
/archives//html/Topband/2016-11/msg00041.html (8,351 bytes)

32. Re: Topband: 160 m inverted L (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 9 Nov 2016 06:10:40 -0600
The rule of thumb for effective elevated radial height is 1/10 wavelength, so on 160, around 50 feet up. 73 Rob K5UJ _________________ Topband Reflector Archives - http://www.contesting.com/_topband
/archives//html/Topband/2016-11/msg00053.html (8,572 bytes)

33. Re: Topband: 160 m inverted L (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 9 Nov 2016 12:22:01 -0600
Got a lot of mail about this, teaching me to shut up because I don't have much free time. Look folks, as you all know, just about everything with antennas works in some fashion and there's a sliding
/archives//html/Topband/2016-11/msg00062.html (9,334 bytes)

34. Re: Topband: Plasma TV noise (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 18 Nov 2016 08:25:26 -0600
First question: Is it your plasma TV or the property of someone outside your family? If it is yours the solution is simple: Haul to target range and blow holes in it and get a LED TV. Or if you are f
/archives//html/Topband/2016-11/msg00122.html (7,627 bytes)

35. Re: Topband: Plasma TV noise (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 18 Nov 2016 11:56:57 -0600
You can buy a TV for the neighbor and if he cooperates that's fine. But they don't always cooperate. Sports fans like plasmas because they have no latency effects in fast live action. And sports live
/archives//html/Topband/2016-11/msg00125.html (9,567 bytes)

36. Re: Topband: [TowerTalk] radial lengths ... (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 1 Dec 2016 05:35:42 -0600
You don't put down a lot of radials only for more return current; you put down a lot also because over time you'll probably lose some of them to damage or decreased conductivity or some form of distu
/archives//html/Topband/2016-12/msg00002.html (7,904 bytes)

37. Re: Topband: Made it! 80 Years a Ham (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 20 Jan 2017 12:05:07 -0600
Paul congratulations. If you find time and energy to do it, I think we'd all appreciate more information or detail about your early pre-WW2 homebrew transmitters and receivers. Were the rx heterodyne
/archives//html/Topband/2017-01/msg00057.html (8,114 bytes)

38. Re: Topband: 160 vertical/L (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Mon, 23 Jan 2017 16:24:22 -0600
One reason for the 120 radial ground system on broadcast sticks often over-looked is that a large number of radials below grade makes the system more stable over seasons between dry and wet wx. It ma
/archives//html/Topband/2017-01/msg00072.html (7,094 bytes)

39. Re: Topband: tower vertical (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 31 Jan 2017 11:45:10 -0600
Bob, You didn't mention the model or manufacturer of your tower. The best installation involves a genuine tapered bottom section of the type made to accommodate a ceramic base insulator. Usually when
/archives//html/Topband/2017-01/msg00108.html (8,302 bytes)

40. Re: Topband: JT65 Power and bandwidth (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Mon, 20 Mar 2017 08:57:12 -0500
§97.313 Transmitter power standards. (a) An amateur station must use the minimum transmitter power necessary to carry out the desired communications. Your "desired communications" are not my "desire
/archives//html/Topband/2017-03/msg00062.html (7,362 bytes)

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