Using N1MM (and others) to Key a KX2 or KX3 with no outboard keyer or CAT commands

[Bob Wilson, N6TV]

The S-BOX <https://bit.ly/S-BOX> supports CW/PTT keying over the DTR/RTS
pins of a KX3 and KX2 serial port, same as you can do on a K3, but by using
standard serial cables and stereo patch cords instead of the KXSER cable.

See  KX3 Docking Station
<https://www.kkn.net/~n6tv/S-BOX/Features.html#KeyingExampleKX3> .

73,
Bob, N6TV
https://bit.ly/S-BOX

On Wed, Aug 1, 2018 at 6:08 PM, Richard Ferch <[hidden email]> wrote:

> With the K3/K3S, but not the KX2 or KX3, there is another simpler method
> which does not have any of the drawbacks of the CAT command method and
> which does not require all of those CAT1ASC macros in your sent messages.
> It is described in the N1MM+ manual at <
> http://n1mm.hamdocs.com/tiki-index.php?page=Supported+
> Radios&structure=N1MM+Logger+Documentation#K3_and_K3S>.
> Basicallly, you set the K3's CONFIG:PTT-KEY method to OFF-DTR or RTS-DTR
> (depending on whether you want PTT as well as CW keying or not), and then
> in the N1MM+ Configurer you configure DTR on the radio control port for CW
> (and RTS for PTT if you want that as well).
>
> Unfortunately, this method will not work with the KX2 or KX3 because their
> serial port interfaces do not have DTR or RTS connections. For this reason,
> the CAT1ASC macro method is used with N1MM+ by many KX2/KX3 owners, despite
> its shortcomings in this context.
>

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