[Elecraft] microHAM K3 cables ...

[Joe Subich, W4TV]

Greg, 

> There are no issues with bias on either mic connection.

That's may be the case if one is using an Elecraft microphone 
(or a computer headset in the rear panel).  However, if one 
has a Heil or Kenwood electret wired to Kenwood's specification 
it will not work.  The Heil/Kenwood will have a capacitor in 
series with pin 1 (Mic +) and a resistor to pin 5 (bias).  The 
cap will block the Elecraft bias on pin 1 and fail to connect 
to +5/+8 on pin 6.  

73, 

   ... Joe, W4TV 
 


> -----Original Message-----
> From: AB7R [mailto:ab7r at cablespeed.com] 
> Sent: Wednesday, December 05, 2007 10:41 PM
> To: Joe Subich, W4TV; 'Rick Tavan N6XI'
> Cc: 'Elecraft Reflector'
> Subject: RE: [Elecraft] microHAM K3 cables ...
> 
> 
> Joe,
> 
> There are no issues with bias on either mic connection.  The 
> operator can select bias to be on or off for both the FP and 
> RP mics.
> 
> 73
> Greg
> AB7R
> 
>