Barry, K8LEF contacted me off line with a solution that worked. He is using an Icom IC-SM5 microphone as well. Solution was to bypass the internal microphone amplifier.
Remove the bottom cover from the mic and disconnect the red (pink?) wire coming from the mic (from the Pad marked ECM+) and disconnect the white wire from the incoming cord (from the pad marked OUT). Solder these two wires together and insulate the connection so it doesn't short to ground. You do need to turn on the Bias for the electret mic. Set it for "FP.L bias". Mic gain works great around 20 to 25. The PTT line does need to be moved from pin 2 to pin 6 to get the PTT to work. Hope this helps anyone else searching for a similar solution. Thanks Barry! Mike W0IH -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Using-IC-SM5-Mic-tp6764918p6769967.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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
