Towertalk
[Top] [All Lists]

Re: [TowerTalk] SWR Problem Balun or lightning protection?

To: "Tony" <dxdx@optonline.net>, <towertalk@contesting.com>
Subject: Re: [TowerTalk] SWR Problem Balun or lightning protection?
From: "Jim W7RY" <jimw7ry@gmail.com>
Reply-to: Jim W7RY <jimw7ry@gmail.com>
Date: Tue, 20 Dec 2011 22:11:53 -0800
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Are you using the same wattmeter?  Or are you using the meter in each radio?

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
> 
> 
> 
> 
> 
> _______________________________________________
> 
> 
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk 
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>