I agree that the coax is the most likely culprit, but check the connections
at your antennas, as well, particularly where telescoping elements connect.
Aluminum oxidizes into a non-conductive material that sometimes can be
"broken through" by transmitting. I see this sometimes when I switch to a
20+ year old Hy-Gain trap vertical. Application of 400w transmit often
"fixes" it for an evening.
=Vic=
WA4THR
----------------------------------------------------------------------------
------------------------------
From: "Bill Rowlett" <kc4atu@hotmail.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 25 May 2005 11:52:15 +0000
Replace the coax NOW.
From: kz2g@optonline.net
Reply-To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
To: tentec@contesting.com, tentec@contesting.com
Subject: [TenTec] omini 6+ & antenna question
Date: Wed, 25 May 2005 03:47:48 -0700
I'm using a Ten Tec Omni 6+. My antennas are a 17-meter mobile whip tuned
for 20-meter with my mfj Versa Tuner II. My other antenna is the radiating
element of a Mosely TA-33 jr beam used as a non-rotatable trap dipole and no
tuner. My coax is about 30 years old. Here's my problem:
When I transmit using over 15 watts, the S zero noise level I had before
transmitting, pops up to an S 3 and stays there for about 30 seconds after I
stop transmitting.
When I use 100 watts, at times my SWR pops way up and I must re-tune my whip
antenna with my tuner.
On rare occasions, after I stop transmitting, I have a very weak receiver. I
must hit my dit or dah paddle on my cw paddles and my receiver pops up to a
hot receiver again.
What do you think is causing these problem? Arcing in my tuner? A bad TR
relay in my Omni 6+? A bad antenna ground? RF getting into the rig? Bad
coax? Or bad antennas?
Bob Mauro, KZ2G Via Web Mail
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|