[Icom] Pro II Oscillation on 6-Maters

Thu, 22 May 2003 19:25:19 -0500

Leaking bandpass filter diodes in the RF unit.

Clif Holland,  KA5IPF
AVVid
Authorized Kenwood and Icom Service
www.avvid.com
1-800-214-5779
972-554-6801
----- Original Message -----
From: "J.R." <[email protected]>
To: <[email protected]>
Sent: Thursday, May 22, 2003 8:39 AM
Subject: [Icom] Pro II Oscillation on 6-Maters

Hello All.

I am having trouble with my Pro II on 6 meters.  With the antenna tuner off
and transmitting in any mode at any power level (even zero) as soon as I
speak into the mic I get an oscillation that is full power out! Although I
don�t keep the radio keyed for more than one second, I�m sure it continues
to product full output. Also, during oscillation the power knob does
nothing.

My antenna swr is flat (1:1 at 50.125) and experience the same issue using a
50 ohm dummy load. I�ve tried a reset but it yielded nothing.

If the antenna tuner is on there are no issues and no oscillation on
6-meter. Also, on the HF bands there are no issues whatsoever� just on
6-meters.

Any insight you can provide would be greatly appreciated.

73s

Joe
KC5DFP

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