[GreenKeys] Thanks for ITTY

[Roy Morgan]

> On Feb 20, 2019, at 11:13 AM, Duncan Brown <duncanancy at earthlink.net> wrote:...
> ITTY is a frequency shifted audio  (AFSK) signal like you would have heard over the radio. ...
> If you want to do the full conversion within you computer, you need a program like MMTTY ( https://hamsoft.ca/ ) to do the decoding and then its companion program EXTFSK ( https://hamsoft.ca/pages/mmtty/ext-fsk.php ) to drive a serial port.

Or look into FLDIGI - this program (free) will decode AFSK signals you get in your computer (or feed to it via the microphone connector, I would guess) and display the text.  I am not sure if it will send a signal to the serial port or not.

See:  http://www.w1hkj.com/

"All source, dmg, and Windows setup files are now available on this site 
and at Source Forge”

This thing also does a fine job of many other digital modes used by hams, and seems to have logging and other add-ons for a variety of uses such as field day, DX cluster monitoring and so on.

Roy

Roy Morgan
K1LKY since 1958
k1lky68 at gmail.com