[GreenKeys] Thanks for ITTY

[Paul Wills (CKT&T)]

Roy,

Thanks.  I realized I had a Flesher TU-170 sitting around that might do 
the job.  I already have a TTL input to my loop control circuit so it 
might be the easiest way to go.

PDW

On 2/20/2019 3:37 PM, Roy Morgan wrote:
>> 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
>
>