On 4/26/2019 7:48 PM, Frank Krozel wrote:
Try switching to a linear supply?
No, ALL power supplies with cap input filter have harmonics. But the problem is FAR, FAR larger than equipment in the shack.
Nick -- what kind of mic do you use with your rig? Is it an electret or a dynamic? Another way of asking -- do you have turn on bias to make it work? Does the buzz get worse with the mic plugged in? Does turning up the mic gain make it louder?
73, Jim ______________________________________________________________ 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
