Bob - checked all the cables - all tigh and well seated. Still same problems 73 Paul w2eck
*Paul:I would check the cables to be sure they are correctly seated and secured for the ACC buss from the radio to the ATU and KPA500. It maybe that the radio is not sending the commands to the ATU and then to the KPA500.I followed the drawing in the KAT500 manual, Figure 1 on page 5.73Bob, K4TAX* ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html