[Elecraft] K2 and N1MM+

[Don Wilhelm]

Ted,

You should be using the special cable from the PC (or USB to Serial 
adapter).
That cable has no RTS or DTR wires in it, so it will not work for 
sending CW from N1MM.  In other words, DTR and RTS are not implemented 
in the K2.

Do NOT try to "fix" it by plugging the USB to serial adapter directly 
into the K2 - if it does not damage the K2, it will cause "strange 
happenings" in the K2 operation.

Either a 'one transistor' keying interface, or a K1EL Winkeyer will have 
to be used between the USB to serial adapter and the K2 key jack to make 
N1MM send CW in the K2.

73,
Don W3FPR

On 12/7/2021 4:13 PM, edauer at aya.yale.edu wrote:
> I need advice for getting N1MM+ to play well with a K2.  I have tried it
> with two different K2 rigs:  a K2 with a KIO2, and a different K2-100 with
> the built in IO.  Same problem.  The K2 Port parameter is set to ON and N1MM
> tracks the RX frequency, so I know the rig and the computer are
> communicating.  But a keyboard command from N1MM to the rig returns the
> error message --  "Unable to send this CW because there is no CW Port set in
> Config."
>
>