[Elecraft] K3 RTTY - PSK D

[Arie Kleingeld PA3A]

Rich,

Yes, I have RTTY working in AFSK mode.
I am trying to make it as LEAN as possible.

If MMTTY can bring the FSK as a digital signal which can be fed into the 
K3 as digital signal (0/1) that would be nice and Lean. Just as N1MM and 
CW over one cable for the K3.

Of course I can use two cables, one for N1MM rig control and one for 
MMTTY and feed that to the ACC connector using an optocoupler or so. 
Again, not as lean as the nice CW solution.

73
Arie PA3A



Op 23-1-2011 0:37, Richard Ferch schreef:
> The MMTTY/EXTFSK combination can use DTR on a serial port for FSK
> keying, but I have no idea whether EXTFSK would work through LP-Bridge.
> Without EXTFSK, MMTTY uses TxD for FSK keying, not DTR, and that cannot
> be shared with radio control.
>
> If you are already using MMTTY, by any chance does that mean that you
> have an audio cable from the K3's LINE OUT to your computer's sound
> card? If so, a second audio cable from the sound card's output to the
> K3's LINE IN is all you need to do AFSK RTTY. The K3's AFSK RTTY is just
> as good as its FSK RTTY, so there is no reason to insist on FSK.
>
> 73,
> Rich VE3KI
>
> PA3A wrote:
>