Recently replaced my ic-7600 with a new to me K3. I don't recall this issue when using the ic7600, but I now have TVI in my u-Verse TVs when using the K3 on 40 meters, primarily on CW, with diminishing evidence on SSB up to 7.2.50 but okay above that. The symptom is pixilation on the screen, then audio blanks out, and finally the set top box will completely lose signal. This occurs on two TV operating on wireless set top boxes, and two hardwired with CAT-5 cabling. I have tried on three separate end-fed long wires fed by coax through a 9:1 UNUN, two with feedline length of 100' and the third approximately 60 feet. I can operate satisfactorily on all bands from160 to 10 Meters with exception of 40 Meters on all three antennas. The K3 auto tuner indicates 1 bar of SWR with output power anywhere from 10 to 100 Watts. I have also used an external ATU with same results. I have looked at everything I can think of, including terminating each antenna port with a dummy load, but to no avail. I've traced out all grounds and coax connections. Nothing helps. What might I be overlooking? Is there an inherent issue in the K3 which might attribute to this symptom? That seems likely since I don't recall this problem when using the same antennas with the IC-7600. I welcome any ideas or suggestions for where to look next.
Thanks, Mike, K5MP [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
