[Dx4win] RTTY Help

[Willie]

Hello,
 
I am trying again to get DX4WIN to work with my Kenwood TS870 radio.  I am
able to get a steady tone and that is all.
 
This is my setup;
 
Radio: Kenwood 870
Interface:  Homebrew one transistor (AA5AU Website)  **
Software: Dx4WIN Ver. 8 and MMTTY Ver. 1.66G


** The interface is built to use TXD for Writelog and RTS for DX4Win.  I
make connections to the FSK input on the back of the radio.  Should the
input for DX4WIN utilize pin 3 of the ACC2 plug on the rear of the radio?

Inputs will be greatly appreciated.

Thanks,
Willie, K5DKH