Steve, Re-check those instructions for the MH2. The resistor goes between pins 1 and 6. Pin 1 is the AF line, and pin 6 is the 5 volt line. You must pipe voltage to the AF line on the mike (through the resistor) to make it produce audio.
BTW, pin 2 is the PTT pin. 73, Don W3FPR Stephen Rector wrote: > Hi All: > > I'm new to this list. As of last week, my K2 s/n 6770 is up and > running - I'm quite happy with it. Even though I have a stealth sloper > to a pine tree (HOA restriction), the receiver has impressed me, and > the QRP gets out (next weekend's board is the 100W PA). This weekend I > got three of the accessory boards installed pretty much without a > hitch, except for a problem with the MH2 hand mic. > > The KSSB2 board seems fully functional and I get good reports on > transmit audio when I use a Heil HM-10 with the K2. But when I plug in > the new MH2 hand mic, the T/R keys but with zero audio: no ALC > indication and no RF. Is there a measurement I can make on the MH2 > before sending it back? (I wired in the 5.6K resistor from pins 2-6 > per the instructions) > > Steve NU7B > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.392 / Virus Database: 270.13.31/2264 - Release Date: 07/26/09 > 11:07:00 > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
