Doug, I agree that it probably is power supply related.
In most of the comments, everyone has overlooked the fact that Jeff's radio was sent back to Flex and thoroughly checked out, and the problem was not found. However, nobody, including Flex, disputes the fact that there is a problem when the rig is operated at Jeff's QTH. This means that the problem is specific to Jeff's installation. It cannot be bias adjustment, design flaw, or anything else within the radio itself. The power supply & associated wiring is the only factor that is different between the 2 locations. The 1st thing I would do is put an oscilloscope on the DC power input at the radio, not at the output of the power supply. But then, I suspect that he has tried that already. 73, Ray, K9DUR _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/