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1. [TowerTalk] 40 Meter Beam problem (score: 1): Author: Dave Thompson <thompson@mindspring.com>; Date: Fri, 17 Jul 2020 10:47:44 -0400 (GMT-04:00); Gang, My Cushcraft 2 el 40 went dead on me and after checking the coax it seems either the coax or balun may be bad. Is there a way to use the MFJ antenna analyzer to check the problem from the groun; /archives//html/Towertalk/2020-07/msg00195.html (7,005 bytes)
2. Re: [TowerTalk] 40 Meter Beam problem (score: 1): Author: W0MU Mike Fatchett <w0mu@w0mu.com>; Date: Fri, 17 Jul 2020 10:09:41 -0600; Define went dead? SWR is infinite? Can you hear anything? Which model? Is it the newer model that uses a Capacitor or the old style 40-2CD which used a simple coils of coax for the choke? W0MU My C; /archives//html/Towertalk/2020-07/msg00196.html (8,181 bytes)
3. Re: [TowerTalk] 40 Meter Beam problem (score: 1): Author: <sawyered@earthlink.net>; Date: Fri, 17 Jul 2020 12:38:14 -0400; Have you used the TDR to see how far up the coax the problem is? If its showing "at the beam" - there is no way I know of to confirm what is the issue jus that its at the beam. Obviously, if the faul; /archives//html/Towertalk/2020-07/msg00197.html (6,842 bytes)
4. Re: [TowerTalk] 40 Meter Beam problem (score: 1): Author: Jon Zaimes via TowerTalk <towertalk@contesting.com>; Date: Fri, 17 Jul 2020 17:14:52 +0000 (UTC); Use binoculars or telescope. Common failure is the wire connection from balun to driven element. Can usually see this from ground. 73/Jon Jon P. Zaimes, AA1K Tower climber for hire Website: aa1k.us C; /archives//html/Towertalk/2020-07/msg00198.html (8,708 bytes)
5. Re: [TowerTalk] 40 Meter Beam problem (score: 1): Author: john@kk9a.com; Date: Fri, 17 Jul 2020 12:52:54 -0500; Dead to me would mean no signals. Coax does not typically open unless physically cut which you could see. It is likely a connection issue or a balun. What type of balun are you using? Hopefully not a; /archives//html/Towertalk/2020-07/msg00200.html (7,799 bytes)
6. Re: [TowerTalk] 40 Meter Beam problem (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Fri, 17 Jul 2020 12:47:30 -0700; Not that I can think of if it's a 259-series -- that's very old technology. To locate the fault along the line, you need a good sweep analyzer with software that can do high resolution TDR. This is m; /archives//html/Towertalk/2020-07/msg00201.html (8,187 bytes)
7. Re: [TowerTalk] 40 Meter Beam problem (score: 1): Author: Richard Solomon <dickw1ksz@gmail.com>; Date: Fri, 17 Jul 2020 13:17:05 -0700; Take a look at the NanoVNA-H over on the Gigaparts website. No need anymore to spend big bucks on a VNA. 73, Dick, W1KSZ _______________________________________________ ______________________________; /archives//html/Towertalk/2020-07/msg00202.html (8,718 bytes)
8. Re: [TowerTalk] 40 Meter Beam problem (score: 1): Author: Dave Thompson <thompson@mindspring.com>; Date: Sun, 19 Jul 2020 10:58:03 -0400 (GMT-04:00); Thanks for all the replies. My MFJ-259B does not have a TDR. When putting up the beams 3 years ago I did have a problem with a bad double connector. Replacing it cured the problem. I plan on replacin; /archives//html/Towertalk/2020-07/msg00214.html (9,602 bytes)
9. Re: [TowerTalk] 40 Meter Beam problem (score: 1): Author: "Gary Schafer" <garyschafer@largeriver.net>; Date: Sun, 19 Jul 2020 10:11:21 -0500; If you have an open or short in the feedline you can find it with the mFJ. It has a cable length function that will do it. 73 Gary K4FMX _______________________________________________ ______________; /archives//html/Towertalk/2020-07/msg00215.html (10,720 bytes)

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