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Old 02-28-2008, 04:39 AM
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Default Icom 745 missing upper bands

I went out in the shack yesterday evening after a two week absence. (sick and busy). Fired up my 745 and noticed that from 24 to 29 mhz was not working. flipped through the bands and went back and saw they were working. after a few minutes of playing around I found it to be intermittent.

The original owner never used those bands. He used mostly 40 and 80 meters CW. After looking through the service manual there is one relay that controls that segment of bands. In the matching network of the final stage.

When the problem occurs the s-meter falls to zero and sounds as if the antenna has been disconnected. All functions still work but no rf power out.

So appears I have to replay a dirty relay.
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