[Elecraft] RE: K3 FSK RTTY - IT WORKS!

[Richard Ferch]

N3JT said:

> 2.  The serial-USB converter I bought yesterday at a local retailer works
> fine for this purpose.  The MMTTY-specified Belkin converter is therefore
> not the only one that works, which is good because it has not been sold
for
> a couple of years.  Perhaps newer serial-USB converters have evolved or
been
> changed, I have no idea.  The one I bought is an IOGEAR GU2C232A and I
> suspect there are others that work as well. This one was $30.

Jim,

The Belkin converter mentioned in the MMTTY Help file appears to be the only
one that will work without the EXTFSK add-on, and according to anecdotal
reports this Belkin converter does not work at all under Windows XP or
newer. However, almost any USB-to-serial adapter should work with EXTFSK; at
least, any USB-to-serial adapter that will work for serial port CW and/or
PTT will also work for FSK using EXTFSK.

One setting you will probably need to adjust in MMTTY is in the Setup MMTTY
window under the Misc tab. If you are using FSK and have either the second
or third radio button under Tx Port selected, you will see a button labelled
"USB Port". You should click on this button and select option C. Limiting
speed. If you leave the default selection A. Normal selected, it is likely
that you will find that the PTT line switches back to RX before all of the
characters have been sent, truncating your message buffers.

73,
Rich VE3KI