[Elecraft] How do you get N1MM to send CW to the K2?

[Guy Olinger K2AV]

You will have to use a different com port on the computer which goes to a
level converter circuit.  That in turn will need to go to the K2's key
jack.  There is no way with a K2 to use RTS or DTR for PTT and CW keying as
on the K3. DTR and RTS are not recognized on the K2, with those pins in the
DB9 jack used for proprietary purposes, including the K2's internal bus.

There are also issues with direct keying from a PC, usually irregular
spacing or what some call "jumpy" CW.  This is caused by a PC's
multitasking.  A lot of us, including myself, have gotten around all of
this by using a Winkey box, or a utility box that embeds the Winkey chip.
 Microham devices embed the Winkey chip.  N1MM can be told to look for a
winkey device on the end of a com port, and will properly drive it.  The
box in turn provides the correct interfacing to key the K2's key jack,
including for some of these boxes a pair of transceivers in SO2R.

73, Guy.

On Tue, Nov 15, 2011 at 1:58 PM, TI2/NA7U <casey at tomochka.com> wrote:

> CAT control seems to be working from N1MM to my K2, but I always get an
> error
> about an incorrect CW port when I try to use the CW function keys. The
> manual isn't clear on how this connection is made. Can CW be sent via CAT
> or
> do I need a special cable/circuit to accomplish this? The default port is
> 3F8 btw.
>
> 73,
>
> Casey, TI2/NA7U
>
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