hi Bill, I have tried a Plantronics Computer Headset in the past with my K2. I made an adapter like you did but with the internal 5V bias. Audio reports were worse than with the dynamic Kenwood microphone I used before. I tried this special microphone because G4ILO recommended it on his homepage. (http://www.g4ilo.com/k2_headset.html). I had hoped that I could make better use of the VOX in the K2, but it was not good enough for my low voice. In the meantime I connected it to the K3 and listened to myself and now I know why the reports were bad. The frequency response of the microphone is not good for this purpose. In the K3 I could compensate it with the equalizer, but together with the K2 you are probably lost. Now I am waiting for the Sennheiser PC 150 now, maybe this is better. My usual headset is the Heil Proset with HC5 element. The reason why I am looking for an alternative is the weight of the Heil headset and the earpads make a pressure on the arms of my glasses and this hurts after some time.
73! de Werner OE9FWV On 18 May 2008 at 16:06, nz0t wrote: > > Just for grins I bought a cheap Cyber Acoustics computer headset to > use with my K3 when it arrives. Others have said they got good > reports with their K3 and this headset which uses an electret mic and > a 3.5MM stereo mini plug. Not wanting to cut off the plug which fits > into the back of the K3 I made up an adapter for my K2 using an inline > stereo jack, an 8 pin mike plug and a 9 volt battery through a 5K > resistor to power the mic. My K2 is wired for the Kenwood mics and I > don't want to power the mic from the rig. I wired the grounds to the > base of the plug, 9V DC through the 5K resistor to the middle and the > mic positive to the tip. It works but my reports with the K2 have not > been very good. I also made up an adapter for my Drake TR7 and > reports on that rig are fine. Am I doing something wrong with the K2? > I know little about electret mics and maybe I am using too much > voltage or the wrong resistor. Any help would be greatly appreciated. > If I can't get it to work the headset was only about $15 shipped so no > big deal. > -- Genetic Engineering Splits Scientists PGP-Key: <http://www.qsl.net/oe9fwv/furlan.asc> Fone +43 5522 75013 Fax +43 820 555 85 2621 Mobile +43 664 6340014 _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
