[Elecraft] RTTY with K2

[Richard haendel]

I am wondering if anyone has modified their K2 to transmit RTTY using FSK, not AFSK. It seems that if XIT were used somehow, I could get the 170 Hz shift by feeding the K2's pseudo"RS232"  connector from my lap top computer com port.  I do not want to feed audio into the mike connector for AFSK. It seems that there is more RTTY distortion and difficulty in lining up the transmit carrier with the incoming receive RTTY signal that way. 

Thanks for anyone's reply
Rich W3ACO