[Elecraft] MicroHam microkeyer

[Don Wilhelm]

Stewart,

If the Microkeyer has connections only to pins 1, 2, 3 and 5 of the 9 pin
connector, one can safely plug it into the K2 directly.

In your case of an external KPA100, you have a existing cable connecting the
K2 to the KPA100.  You will have to bring out another cable from the K2 end
containing the wires from pins 1, 2, 3 and 5.  This is the normal cable
configuration for a computer connection with an external KPA100 (the RS232
signals contained at the external KPA100 end are not usable). You can make
the 'computer' cable length anything convenient for your situation.

BTW - It may or may not be obvious, but once you do make up this cable
containing only wires to pins 1, 2, 3 and 5, you can connect any RS232
device to the far end of that cable with no harm to the K2.

Another BTW - a properly configured KRC2 can connect all your other Elecraft
gear together and you can connect a standard serial cable to the KRC2
without harm.  Do be aware that the KRC can be configured either way - to
pass the internal K2 signals along or to block them from the 'computer'
connector, it depends on which jumpers are in place.

73,
Don W3FPR

> -----Original Message-----

>
> Don and all,
> Thanks for your replies.
>
> I have read all the tales of distress and solutions to the mix of
> RS232 and
> non-RS232 re the K2 interface. Don't want to go there.
>
> The standard MicroKeyer to K2 lead set as far as I can tell seems
> to have a
> RS232 D type connector presumably male to go directly into a K2.
> My system has the link cable between the K2 and a separate KPA100
> & KAT100.
> As the PC end of that cable is female I think that the MicroKeyer
> male connector
> should mate with that. MicroHam say look at the diagrams and
> modify the cable
> to suit. They only use TX, RX and ground pins.
>
> I was really hoping for someone who was using the MicroKeyer
> with a separate K2 and KPA100 combination so I can verify things.
>
> 73
> Stewart G3RXQ
>
>