The K3 can apply BIAS to either the Front 8-Pin Microphone Connector or the rear 1/8" Connector. BIAS settings for both are OFF, LOW, and HIGH.
The K3 uses the Kenwood Microphone Connector pinout. Also if a Heil Adapter is used, it has to be a version without the 1uF Blocking Capacitor. Heild makes both one for use with their HC4 / HC5 Dynamic Elements and another for use with their iC Electret elements. 73 -- Dave, W9ZRX -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Igor Kosvin Sent: Tuesday, 21 February, 2012 23:30 To: 'Bryon'; 'elecraft' Subject: Re: [Elecraft] K3 Setup and CM500 Headset Questions The CM500 has electret condenser microphone. It require bias. If you want to use front panel you have to use little battery box that came with the headset. Just install the batteries and connect the battery box in series with the microphone cable. If you decide to use rear panel, you do not need the battery box, just need to use menu setting for rear panel mic with bias. 73, Igor, N1YX -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bryon Sent: Monday, February 20, 2012 11:50 PM To: elecraft Subject: [Elecraft] K3 Setup and CM500 Headset Questions Hello everyone. I have a couple questions for you. I have browsed the archives and I was not seeing anything that was helping. This is a new K3 to me, the guy before was primarily a CW operator. He did not even own a mic. So I decided to buy the Yamaha CM500 headset and was trying to get it all setup this evening. Below is some of the things I have tried. In short, I am looking for the settings you have found to work. I am following the Fred Cady guide that I bought online. I am in the setting up SSB section. I was in test mode. When I was not in test mode I could get the TX light to come on via the PTT foot pedal, the XMIT button and never VOX. I never heard myself in test mode even when messing around with the Monitor, Compression, MicGain, VOX Gain and the VOX Interrupt, Mic+Line (off). I am using the Front Panel, Low, Heil adapter. I tried the headphones/mic on the computer, they sound great and the mic picks up very well. So, with VOX not going off at all. I suspect the mic connection is not getting to the radio. My headphones came with 1/8" to 1/4" adapters. 1 stereo and 1 mono. the mic on the headset is 1/8" and goes directly into the adapter along with the 1/4" PTT pedal. I then have the stereo 1/8" to 1/4" for the audio and that is plugged into the front. I also wasn't sure what to connect it to on the back since there are warning messages near the stereo connectors on the back. I was afraid to mess with anything there. Is it a bias issue? A connector issue? Software setting? Thanks in advance for any assistance. Bryon / W7RIV ______________________________________________________________ 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 ______________________________________________________________ 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
