Hi Iain,
Just to let you know that I've noticed the same issue on my K3 #5102. It's present only when I have the front panel mic socket active. When I use the rear panel mic input with my headset, the problem is not there. Like you, the problem increases as compression is increased. It's not dependent on the mic I have connected to the front panel mic connector. MIC + LINE in is OFF. I wondered if this was some internal feedback associated with the audio amp chain connected to the front panel, but I don't know. I also wondered if it might be RF, somehow finding its way into the front panel audio chain, but not the rear? I haven't found a solution. If you do, please let me know. 73, John VK7JB ______________________________________________________________ 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

