Begin forwarded message:
> From: Stephen Rector <azstef...@mac.com> > Date: July 26, 2009 5:26:51 PM GMT-07:00 > To: d...@w3fpr.com > Subject: Re: [Elecraft] MH2 Mic issue > Message-Id: <32086425-1687-4f48-8559-b91c3895b...@mac.com> > In-Reply-To: <4a6cee8d.2070...@w3fpr.com> > Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes > X-Smtp-Server: smtp.mac.com:azstefano > Content-Transfer-Encoding: 7bit > Mime-Version: 1.0 (Apple Message framework v935.3) > References: <c4b523e9-4d50-484c-97c9-0586bbae3...@mac.com> > <4a6ce6f0.7050...@embarqmail.com > > <321a9bcf-9ede-42b6-b4b3-09c9fe59a...@mac.com> <4a6cee8d.2070...@w3fpr.com > > > > Hi Don: > > I did it the more painful way - pulling out the front now means > removing the DSP boards... I'll remember the side panel suggestion... > > Anyway - problem solved, and the HM-10 doesn't mind the DC on the AF > line, so both mics are working. > > Thanks for that almost instant help. Nice to see such an active > list. I've been inactive ham for almost 10 years, but now hv excuse > to spend some more time on the air as the next sunspot cycle builds > steam. > > Thanks, > > Steve NU7B > > > On Jul 26, 2009, at 5:02 PM, Don Wilhelm wrote: > >> Steve, >> >> You can get access to the back of the mic jack by removing the left >> side panel - enough clearance to change the end of the resistor >> from pin 2 to pin 1. >> >> 73, >> Don W3FPR >> >> Stephen Rector wrote: >>> Oy - that would explain it. I'll check that right now. maybe a >>> cerebral typo.... >>> >>> Tnx, >>> >>> Steve >>> >>> >>> On Jul 26, 2009, at 4:29 PM, Don Wilhelm wrote: >>> >>>> 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 >>>>> >>>>> >>> ------------------------------------------------------------------------ >>> >>> >>> 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
