Re: [Elecraft] MH2 Mic and MKII interface
Kenwood mic does not use bias (it is dynamic). Elecraft requires bias. Measure between pins 1 and 7 to confirm bias (2.2 to 3.3V - industry standard for AV mics). Also check to make sure the microphone is wired correctly - mic ground must be on pin 7, PTT ground must be on pin 8. If the two are reversed the mic will not receive bias. Elecraft connects both 7 and 8 to the same ground but the mic and PTT grounds are different in microKEYER/microKEYER II (and most other manufacturers). 73, ... Joe, W4TV On 2/24/2013 1:05 AM, Ricardo PY2PT wrote: Dear Joe, I've tried both jumpers position and nothing!!! With my kenwood hand mic everything is ok. But with the MH-2 mic (even changing the jumper position) nothing!! Best Regards Em 23/02/2013, às 23:31, Joe Subich, W4TV escreveu: The MH2 is an electret mic wired with a Foster plug having Elecraft's Kenwood compatible pin assignments. The microHAM DB37-EL-K3R and DB37-EL-K23 cable sets are configured for the Electaft/Kenwood standard and the supplied Foster to RJ-45 adapter cable allows connecting the MH2 to the rear panel MIC jack (RJ45). Since the MH-2 is an electret mic and requires bias voltage on pin 1, it is necessary to install the "electret" jumper for the RJ-45 jack located just in front of the three trimmers in the center of the MK II circuit board as shown in step 5 of "Preparing microKEYER II for Use" - page 8 of the microKEYER II User Manual. 73, ... Joe Subich, W4TV microHAM America, LLC. http://www.microHAM-USA.com http://groups.yahoo.com/group/microHAM On 2/23/2013 7:25 PM, Ricardo PY2PT wrote: Dear guys, Please, any friend use the hand mic (MH-2) with a MicrokeyerII interface? Best Regards Ric PY2PT __ 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 __ 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 __ 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
Re: [Elecraft] MH2 Mic and MKII interface
Dear Joe, I've tried both jumpers position and nothing!!! With my kenwood hand mic everything is ok. But with the MH-2 mic (even changing the jumper position) nothing!! Best Regards Em 23/02/2013, às 23:31, Joe Subich, W4TV escreveu: > > The MH2 is an electret mic wired with a Foster plug having Elecraft's > Kenwood compatible pin assignments. The microHAM DB37-EL-K3R and > DB37-EL-K23 cable sets are configured for the Electaft/Kenwood standard > and the supplied Foster to RJ-45 adapter cable allows connecting the > MH2 to the rear panel MIC jack (RJ45). > > Since the MH-2 is an electret mic and requires bias voltage on pin 1, > it is necessary to install the "electret" jumper for the RJ-45 jack > located just in front of the three trimmers in the center of the MK II > circuit board as shown in step 5 of "Preparing microKEYER II for Use" - > page 8 of the microKEYER II User Manual. > > 73, > > ... Joe Subich, W4TV > microHAM America, LLC. > http://www.microHAM-USA.com > http://groups.yahoo.com/group/microHAM > > > On 2/23/2013 7:25 PM, Ricardo PY2PT wrote: >> Dear guys, >> >> >> Please, any friend use the hand mic (MH-2) with a MicrokeyerII interface? >> >> >> Best Regards >> >> >> >> Ric >> PY2PT >> __ >> 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 >> > __ > 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 __ 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
Re: [Elecraft] MH2 Mic and MKII interface
The MH2 is an electret mic wired with a Foster plug having Elecraft's Kenwood compatible pin assignments. The microHAM DB37-EL-K3R and DB37-EL-K23 cable sets are configured for the Electaft/Kenwood standard and the supplied Foster to RJ-45 adapter cable allows connecting the MH2 to the rear panel MIC jack (RJ45). Since the MH-2 is an electret mic and requires bias voltage on pin 1, it is necessary to install the "electret" jumper for the RJ-45 jack located just in front of the three trimmers in the center of the MK II circuit board as shown in step 5 of "Preparing microKEYER II for Use" - page 8 of the microKEYER II User Manual. 73, ... Joe Subich, W4TV microHAM America, LLC. http://www.microHAM-USA.com http://groups.yahoo.com/group/microHAM On 2/23/2013 7:25 PM, Ricardo PY2PT wrote: Dear guys, Please, any friend use the hand mic (MH-2) with a MicrokeyerII interface? Best Regards Ric PY2PT __ 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 __ 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
