Hang in there Tom, don't give up the ship!
I have been a ham for over 50 years and have contested for 40 years. I
certainly have heard all of the war stories about blowing out front ends on
receivers, and have seen it happen, but not once has this ever happen to me.
I guess I'm either lucky or can't generate enough to RF power clause a
problem.
About six months ago I decided to run a test with my SO2R setup. I actually
tuned the right radio to the left radio's transmit frequency and transmitted
1500 watts with the transmit and receive antennas only 50 feet apart.
Everything worked just fine afterward. I then took my 3rd radio, tuned it to
the transmit frequency of my left radio, and put it on a receive antenna 25
feet from the antenna that was transmitting 1500 watts and nothing bad
happen except a temporary pinned S-meter. So am I just lucky or is it the
equipment I'm running?
All three of my radios are Ten Tec Orion II's. However, because of
interference reasons I do run two complete sets of W3NQN band pass filters,
but that won't help on the same frequency.
73, Dan W4UH
-----Original Message-----
From: rtty-bounces@contesting.com [mailto:rtty-bounces@contesting.com] On
Behalf Of Tom Martin
Sent: Tuesday, February 14, 2012 9:31 AM
To: rtty@contesting.com
Subject: [RTTY] SO2R Problem
Soapbox : First time achieving a million points but it was costly.
Excessive RF took out the front end of the FT-1000MP after 2 hours.
Lost 10 meters on the PRO II on Sunday. As of Monday morning, no receive or
transmit with the PRO II on any band. I have an Icom 706 until the big rigs
get repaired or replaced.
I should have realized that something was wrong, when the wattmeter on the
MP/220 combination showed a huge backward deflection, when I keyed the Pro
II/8410 at 1200 watts. The 80 meter Crazy J was too close to the 40 Vee and
vice versa. I put up the new 80 meter antenna to see if it was better than
the Butternut. I had no RF issues in the ARRL RU without the new antenna.
It's tough on a small city lot to get any separation.
This was probably my last SO2R effort.
Dupes were the least of my problems!!!
73,
Tom W8JWN
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