From the Power Supply or KPA1500?? Or Both?? On 4/5/2020 5:03:51 PM, Carl Yaffey <[email protected]> wrote: Hum is in the shack.
On Apr 5, 2020, at 4:58 PM, Salvatore Ted K2QMF <[email protected] [mailto:[email protected]]> wrote: Hum on your Transmit Signal?? Or hum in the shack?? Where is the hum coming from?? On 4/5/2020 4:51:23 PM, Carl Yaffey <[email protected] [mailto:[email protected]]> wrote: I have developed a loud hum with the KPA1500 on 17m and 15m. A slight hum on 20m. All other bands, no hum. It’s power dependent. Loud at full power, hum reduces as power is lowered. Not too bad at 500w. Suggestions? 73. Carl, K8NU. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft [http://mailman.qth.net/mailman/listinfo/elecraft] Help: http://mailman.qth.net/mmfaq.htm [http://mailman.qth.net/mmfaq.htm] Post: mailto:[email protected] [mailto:[email protected]] This list hosted by: http://www.qsl.net [http://www.qsl.net] Please help support this email list: http://www.qsl.net/donate.html [http://www.qsl.net/donate.html] Message delivered to [email protected] [mailto:[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]
