What kind of antenna is this Tony?
73
Jim W7RY
--------------------------------------------------
From: "Tony" <dxdx@optonline.net>
Sent: Tuesday, December 20, 2011 9:12 PM
To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] SWR Problem Balun or lightning protection?
> All,
>
> I bypassed the lghtning protection and the SWR problem is still there. I
> installed a new coax connector on the shack side of the coax as well.
>
> I still have to check the balun, balun leads and the coax-to-balun
> connector. There's nothing else inline. The coax (Bury Flex) and balun
> (3KW M2) were installed a few years ago.
>
> I just checked the system again with two different 100 watt rigs and
> found that:
>
> - I can transmit for 2 or 3 minutes from a cold start before the SWR
> starts to rise
> - the SRW returns to normal 30 seconds after I stop transmitting
> - it takes a lot less time for the SWR to rise after the 30 second rest
> period
>
> I did replace the ground wires with copper strap a few months ago, but I
> haven't made any other changes to the tower and antenna system.
>
> Why do these things always happen during the winter ; )
>
> Tony, K2MO
>
>
>
>
>
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