[RTTY] USB to Serial adapters

[Richard Ferch]

If you are looking for a USB to serial adapter that will support 5-bit 
Baudot characters, you may have difficulty.

However, if you are using MMTTY, you can download the comfsk105.zip file 
from the MMTTY website (http://mmhamsoft.ham-radio.ch/mmtty/index.html) and 
see if you can get that working. If your USB adapter will do DTR and RTS 
switching for CW and PTT, then with the extfsk dll from the comfsk105.zip 
file you should be able to make FSK work. I cannot tell you whether it will 
work from inside your contesting program, other than to point out that even 
with MMTTY stand-alone it cannot be on the same serial port as the one you 
are using for rig control.

Worth a try, perhaps?

I did a short try with a temporary lashup a few months back to confirm that 
it would work with my system, but since then I have not yet gotten around 
to wiring up a more permanent interface, so except for a few short tests I 
am still on AFSK. Has anyone been using the extfsk dll seriously, and if so 
with which software (other than stand-alone MMTTY)?

73,
Rich VE3IAY