David and All,

I would guess that that would work. The question is what is really on pin 5 internally right now. The pinout diagram in the manual says pin 5 is a "Function" pin, and it is marked with an asterisk. The footnote says "if applicable". So, I'm guessing there is really nothing going to pin 5 internally right now. But you aren't getting bias there either. That's on pin 6. That's presumably why you have to tell the K3 via menu to turn on the bias, and it puts bias on the microphone pin. If the supplied adapter used pin 6 instead of pin 5 I assume you would not have to go to the menu to get bias. So, I'm guessing now that the real problem would come when they start using pin 5 for some "function" not yet implemented. Maybe I'm all wet, but that's what I interpret from the diagram in the manual.

Dave W7AQK


---- Original Message ----- From: "David Ferrington, M0XDF" <[EMAIL PROTECTED]>
To: "David Yarnes" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>; "Elecraft Reflector" <elecraft@mailman.qth.net>
Sent: Thursday, May 01, 2008 1:48 AM
Subject: Re: [Elecraft] re: K3 [Elecraft Proset Question


My Proset K2 works fine in the front connector of my K2 using the supplied adapter cable.
This was purchased along with the K3.
The Mic is a 'mono' style 3.5mm (pretty sure it's not 1/8", but the ever so slightly larger 3.5mm) connector, so the bias must be supplied to the tip at a guess. I normally use it in the rear mic socket and so I just set MENU MIC SEL = RP.L BIAS
(rear panel, low mic gain with bias).
73 de M0XDF, K3 #174

--
God gives every bird his worm, but he does not throw it into the nest.
-Swedish proverb

On 1 May 2008, at 06:39, David Yarnes wrote:

Fred and All,

I believe the adapter supplied with the Elecraft Pro Set is a true Kenwood adapter. On the K2 you wired the radio for whatever microphone you wanted. If you wanted to use a Kenwood microphone setup you wired the K2 accordingly. That would put bias on pin 5. The Elecraft Pro Set, which is an electret with the "IC" cartridge, was deemed to be fully "Kenwood compatible, and so they just supplied a Kenwood adapter with the Pro Set, and that worked fine on a K2 wired for Kenwood. Along comes the K3, with bias preset on pin 6, and they are still sending out the Kenwood adapter. I think that's why it doesn't work for you. I have the Elecraft Pro Set also, and I just use the jacks on the back of the K3--no adapter used.



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