Gary; By now I am sure you have checked all the ribbon cable connections and are sure they are plugged in properly. This sounds like a problem that needs to be addressed by the tech support guys. Be sure to give them a call on Monday.
73! Jack, W6FB > On Mar 9, 2019, at 9:14 AM, Gary NC3Z <[email protected]> wrote: > > Connecting the RX directly to the antenna and the spurs are not there, > the spurs are coming from the KPA500, and only when the KPA500 is > connected to a radio (happens on all my radios connected to the KPA). > Have tried the amp on 220 and 120, same issue. The KPA500 can be > connected to a dummy load at the RF Out, and RF In to the RX and the > spurs are there. With out a doubt they are being generated in the KPA500 > when the LCD backlight is on, and these are healthy spurs. > > I have spent hours taking the thing apart and putting back with the same > results. Tripled checked all assembly with no luck. But I am 100% > positive it is directly related to the LCD backlighting. This is a very > weird issue! > > Gary Mitchelson > NC3Z/4 Pamlico County, NC FM15 > NC AHIMT COML > SHARES NCS997 > NC Deputy Auxcomm Coordinator - Statewide > www.mitchelson.org > > On 3/9/2019 09:45, Andy Durbin wrote: >> Nothing heard or seen on 10 m with my kit built KPA500. >> >> I'd suggest disconnecting the RX from the KPA500 and connecting it directly >> to the antenna. Does the problem go away? >> If not, connect the RX directly to the dummy load. Does the problem go away? >> If not, disconnect everything else from the KPA500 except the power cord. >> Does the problem go away? >> If not, connect the KPA500 to an outlet on a different circuit. Does the >> problem go away? >> >> Hopefully, one of these steps will give some information on the source of >> the problem. >> >> 73, >> Andy, k3wyc >> >> >> >> >> >> > ______________________________________________________________ > 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 ______________________________________________________________ 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
