David, my first thought is perhaps your RF ground connection is too long to
be effective above 21 mHz. You didn't indicate it but if the shack is on the
2nd floor, you might need several different lengths to avoid 1/4 wave
resonant grounds which will raise the shack above ground potential.
K3QS
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com]On Behalf Of stambuck
Sent: Sunday, March 14, 2004 9:09 PM
To: towertalk@contesting.com
Subject: [TowerTalk] Iner mod
Hi, K2XI here.
I am having problems with RF feed back, mainly between V H F and 6 to 15
meters I have good grounds. I am using LMR 600 on V H F , Double shield RG
8 on HF. The RF affects both radios regardless witch one is transmitting.
The RF problem goes away after 15 meters 20 meters down it is OK, no problem
at all ! Thanks
K2XI, David Stambuck, Jr.
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|