Hi Mark, I have been intending to respond to your posting below for ages but am afraid it's only just got to the top of the stack - sorry!
Although I am not a particularly frequent telephony operator, I have used the MFJ 434B with the K3 and it works just fine. Because I use my Heil headset with several different (in Field Days etc) I have had to confront the problem of different vendors using different microphone connectors - and even worse, the same connector with different pinouts....my solution was to wire the microphone plug to the Yaesu standard - with apologies for using the Y word on the Elecraft list :-) - , set the headers in the MFJ to the Yaesu standard (and also the appropriate header to apply the polarising voltage to the electret microphone insert), and then build individual Yaesu - Elecraft, Yaesu - Icom etc. adapters for rigs that don't use the Yaesu pinouts. I'm afraid I don't know where you can buy pre-made cables, but making up the adapters is straightforward if a bit fiddly. I don't know if that will help in your particular situation (I suspect perhaps not), but on the principle that any info might come in useful I thought I'd chip in. 73, Quin G3WRR ________________________________ From: "pastor...@verizon.net" <pastor...@verizon.net> To: elecraft@mailman.qth.net Sent: Wednesday, 25 February 2015, 4:05 Subject: [Elecraft] MFJ 434B Connections Hi, this is Mark Griffin, KB3Z. Has anyone connected a MFJ 434B Voice Keyer to the K3? I assume that I would connect my Heil HM-12 microphone to the external microphone jack on the front of the unit. The man from MFJ said I would have to set up the jumpers in the unit for a Kenwood. But for some oddball reason they use a modular cable plug to connect the 434B to my K3. I realize I would have to use the MIC Connector on the back of my K3 and would have to make the necessary change with the K3 so it knows that I am using the MIC connector in the back. But where do I find one of these Modular cables to connect the 434B to the K3. Any help or advice would be very much appreciated. Mark Griffin KB3Z ______________________________________________________________ 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 Message delivered to q.g.coll...@btinternet.com ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
