[ICOM] Re: IC-746 w/ No output/high SWR on 6M
Gary Nichols
kd9sv at comcast.net
Tue Feb 7 10:28:41 EST 2006
I have also had that same indication (on all bands) that was caused by a
"Loose" PL259 connector on my antenna switch. Tightened it and problem went
away...de gary, kd9sv
-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of gfiber at comcast.net
Sent: Tuesday, February 07, 2006 10:18 AM
To: ICOM Reflector
Subject: Re: [ICOM] Re: IC-746 w/ No output/high SWR on 6M
Mac,
Don't overlook the coax cable feeding the antenna. I once had some coax that
the shield had corroded to black and it was opening under transmit. I would
be chatting along on 10 meters and all of a sudden the rig would fold back
in output power and the reverse power would go to almost full output power.
The antenna was a Mosley 310C.
Took me a bit to figure it out as the Drake W-4 I had always shown a good
match.
Gary K8IZ
-------------- Original message ----------------------
From: "D C (Mac) Macdonald" <k2gkk at juno.com>
> Right now, it may be a REAL SWR problem with the antenna. It looks
> good on an MFJ Antenna Analyzer, but wouldn't work with my IC-703
> either.
>
> Right now, I'm waiting for Oklahoma winds to subside so it will be
> safe for a younger ham (I'm too old to be climbing around on a steep
> roof) to take the Ringo down so we can check things out.
>
> I also have Drake WV-4, Bird 43, and Heath VHF wattmeters that I will
> use for further checking.
>
> I'll post to the list when I find out something.
> Meanwhile, thanks to all who have offered suggestions. I don't have a
> low-pass filter in the line and no amp, either; going straight from
> IC-746 to antenna.
>
> Maybe my brain is going soft after 50 years plus of RF exposure???
>
> 73 --- Mac, K2GKK/5
>
>
> ----
> Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net Icom
> Users Net: Sundays, 1700Z, 14.316 MHz Icom FAQ:
> http://www.qsl.net/icom/
----
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