To go from CW to RTTY I have to make one change in the RR Control setup- Serial ComFSK or ComExtra or Com3 is now Mode 10- Baudot RTTY. Before it was Mode 8- Winkey. After much experimentation and a few emails swapped with Elecraft, I found the sound card that is in the K3Mini0 can't be used by MMTTY. Having done a lot of RTTY contesting over the years, I wouldn't even attempt to use the K3 RTTY Decode or transmit facilities; I stick to MMTTY or 2Tone.
In my particular case, ComFSK or USBCom3 was seen by the computer as Com6. This info goes into MMTTY only; on the transmit tab, PTT&FSK are Port Com 6. On the Misc tab, under Tx Port, Com-TxD(FSK) is selected, and under the USB Port button Limiting Speed is checked. On the Sound card tab, I select the proper input on my soundcard, in this case Line In.
When operating RTTY, I try to set up the soundcard for a constant AF level in. I run the SP jack on the RR Control unit to the soundcard, plug my headphones into the soundcard output, then set the level of the input using the K3Mini0 AF and RF gain controls. During the contest, I use the soundcard out level control as an adjustment to the loudness in the headphones.
One other thing- I bought the original cables from Elecraft, but I've made my own since then. The Y cable on the back of the Remote K3 has one leg for band decoders, and the other for the RR box lead. The RR Box lead, as supplied from Elecraft, only has 3 connections: On pin, FSK pin, and Ground pin, so those are the only lines that are on the cable I made. The only connection that both cables have in common is the ground pin. That 4 "line" mini-phonos is why I use an external sound card; external sound cards are very cheap, and you can choose the card for the inputs you have available.
In any case, its working for me. First Q was 3Z0R, with 100w, on 40m.
If anyone needs a copy of my setup files, let me know. I'll be on limited time in the WPX RTTY as KM1W.
Dennis W1UE
