You can plug the CM500 mic straight in to the KX3. You need to disable the mic button and make sure mic bias is on.
Or, a regular stereo to mono splitter will give cleaner bias for the mic and will pull out the PTT line to a separate jack. Details here: https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/ Some people like the Koss SB45 headset, which is even cheaper than the Yamaha CM500. They both have electret mics. The mic plug on my CM500 says “KOSS”. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Nov 10, 2017, at 11:58 AM, Edward R Cole <[email protected]> wrote: > > Guess finally time that I consider a Yamaha CM500. Considering operating in > remote open areas with my KX3-2M as IF radio for mw, it will be handy to have > the headset/boom mic combo. > > I note the CM500 comes with separate mic and headset connectors while the KX3 > has that four ring mic connector. I wonder if a conversion cable has been > made or offered? I will probably be plugging the boom mic into a sequencer > box which will delay activation of PTT while passing on mic audio. Still > will need a cable to plug into the KX3 mic jack. I assume the headset > connector is compatible with KX3? > > I can make a cable if the four-ring plug is available. > > How are most handling mic PTT with this headset? One add shows a black box > with receptacle and cord with stereo plug (nothing stated in add what this is > but wonder if its use is PTT?). Best price I am seeing is $59.95 free > shipping. Anyone have a cheaper source? > > I could use while mobile if local laws permit headsets. Currently just using > internal speaker in my truck. Also thoughts of connecting truck Sync with > KX3 headset out but haven't studied that yet. For my poor hearing the > headset is better solution. > > 73, Ed - KL7UW > http://www.kl7uw.com > Dubus-NA Business mail: > [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] ______________________________________________________________ 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]
