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Heath sb-1400 won’t tx on 10 & 12 meters.

red97k1500

Well-Known Member
Nov 26, 2012
363
295
73
texas
I recently picked up a Heath sb-1400 aka yaesu 747gx minus the the front firing internal speaker. The radio will tx on 15 meters and up. A couple of times it has worked on 10 meters and I was able tx in am cw and usb into a dummy load.Then I turned the radio off, and back on about 30 minutes later and tx on 10 again. I could also hear my self through another radio in the same room. So I know the radio is capable of txing on 10 meters but it is intermittent. I’ve tried leaving it turned on for several hours and no luck.

any ideas or help is appreciated.
 

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