[ICOM] Noisy IC-R71A

Bert Almemo balmemo at sympatico.ca
Fri Mar 7 10:07:33 EST 2008


Hi Gary,

Thanks for the tip. I've forwarded your info to my friend with the sick
radio. Have a great weekend!

73 Bert, VE3OBU

 

-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of Gary Fiber
Sent: Friday, March 07, 2008 12:16 AM
To: ICOM Reflector
Subject: Re: [ICOM] Noisy IC-R71A

Yes check and see if you have a DC voltage present at the center of the
antenna jack.
Generally a coupling cap would short in some of the HF rigs like the R71A
and the RX would get real noisy especially when you connected a DC grounded
antenna to it.
Take your Voltmeter and place the + in the center and  -  on the threads of
the SO-239. Should be NO DC volts there so far as I remember.

Gary K8IZ

At 07:54 PM 3/6/2008, you wrote:
>Hi guys,
>
>Trying to fix a noisy R71A. Very high noise level even with antenna 
>input grounded. AF seems to be OK as noise almost disappears when RF 
>gain is fully CCW. Any ideas? Thanks.
>
>73 Bert, VE3OBU
>
>
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Gary Fiber K8IZ
GROL PG-19-6691
Washington State Resident


----
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