[Elecraft] KX3 jacks and connections

[Wayne Burdick]

Mike Schwendeman wrote:
>

> First, he said that the 3-circuit plug will not offer
> PTT.  Then, he offered that the 3-circuit devices from FRY'S, as an
> example, would allow one to use the KX3 as a handheld radio.

The XMIT switch would be used with any 3-circuit mic, such as the one  
from Fry's. This switch is about 1" from the mic jack and convenient  
to use.

>
> In view of the fact that a 4-circuit has the (assumed) ground, mic
> audio/bias, PTT and up-down functions, could it not have been possible
> to "allow" a person to use a 3-circuit plug, and enjoy the normal
> (expected) functions of mic-with-PTT, and "ignore" the up-down  
> functions?

It would certainly be possible to create a small adapter that brings  
PTT out separately, or rewire a mic with a 3-circuit plug to work with  
the KX3's PTT line. We could also allow reuse of a different I/O pin  
for PTT with a menu entry.

UP/DN function conflicts (voltage levels) could be resolved by setting  
MENU:MIC BTN to OFF.

This will evolve further as needed based on customer feedback, such as  
yours.

>
73,
Wayne
N6KR