[Elecraft] MFJ 434B Connections

[QUENTIN COLLIER]

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: "pastormg2 at verizon.net" <pastormg2 at verizon.net>
To: elecraft at 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
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