[Elecraft] K2: CAT PTT and CW

[Julian, G4ILO]

Jim Dunstan wrote:
> 
> Is it possible to send a PTT and,or the  CW keying commands to the K2 via 
> the RS232 port if the K2 has the KIO2 module installed ..... using
> software 
> such as MixW.
> 
> 
Most software that supports CAT control can use it for PTT control so you
don't need a switching transistor driven by RTS or DTR to control hardware
PTT.

CW keying by CAT on the K2 and K3 uses a protocol that is unique to Elecraft
which is not supported by any software apart from the K3 utility and KComm.
A similar protocol is available on some Kenwood rigs but because it does not
provide a way to test if the buffer is full or to abort sending in
mid-transmission it is not really usable and is not supported by any
programs including MixW. Some programs that support sending CAT commands in
macros can be made to send CW via RS232 by programming the CAT commands like
"KY CQ TEST DE ....;" into macros, but the text must not exceed 24
characters, the buffer length. I'm not sure if you can do that in MixW as I
no longer use it.

To send CW using MixW you need a transistor switch driven by RTS or DTR
connected to the K2 Key jack (which must be set to straight key not paddle).
I think MixW also supports Winkey keying which is more reliable.

-----
Julian, G4ILO. K2 #392  K3 #222.
* G4ILO's Shack - http://www.g4ilo.com
* KComm - http://www.g4ilo.com/kcomm.html
* KTune - http://www.g4ilo.com/ktune.html

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