[Antennas] Antenna SWR

Tue Mar 1 12:58:20 EST 2011

Oops, wrong table on the before.
David
KW4DH
On 3/1/2011 12:45 PM, N9QZD wrote:
> Didn't say how much of a change. Could just be the wet ground under the antenna. Lower ground losses would probably push your swr up.
>> -
> Sent from my BlackBerry!
>> -----Original Message-----
> From: "David C. Hallam"<dhallam at knology.net>
> Sender: antennas-bounces at mailman.qth.net
> Date: 2011年3月01日 12:22:23
> To: Antennas<antennas at mailman.qth.net>
> Reply-To: dhallam at knology.net
> Subject: [Antennas] Antenna SWR
>> I just got a new play toy, an antenna analyzer, and have taken some SWR
> measurements on my antenna. I have a Butternut HF6V. This morning I
> measured the SWR. Shortly afterward we had a rain storm. Out of
> curiosity I measured the SWR again and found a significant upward change
> on all bands. I am confident there is no water egress at the connection
> of the feed line to 20M 1/4 wave transformer section. All joints on the
> antenna were assembled with Noalox. Maybe there could have been some
> water egress at the connecting lugs of the the 1/4 section on the
> antenna where they connect to the antenna but they appear to be sealed.
>> Should I expect a SWR change just from a wet antenna?
>
-- 
“I bring reason to your ears, and, in language as plain as ABC, hold up truth to your eyes.” Thomas Paine, December 23, 1776