[GreenKeys] Thanks for ITTY

[Paul Wills (CKT&T)]

Duncan,

Thanks.  I will investigate.

PDW


On 2/20/2019 11:13 AM, Duncan Brown wrote:
>
> On 2/20/2019 09:43, Paul Wills (CKT&T) wrote:
>> Speaking of which;
>>
>> Is there a way to send ITTY directly to a properly configured serial 
>> port?  Right now, I'm using Heavy Metal to drive my equipment but 
>> ITTY would certainly provide some extra "food" for the Teletypes to 
>> digest.
>>
>> PDW
>
> Paul,
>
> ITTY is a frequency shifted audio  (AFSK) signal like you would have 
> heard over the radio.  The AFSK signal must be converted to a 
> Mark-Space DC signal in a AFSK "converter" or "Terminal unit" such as 
> manufactured by HAL or Dovetron.
>
> 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.
>
> Have fun,
>
> Duncan
> K2OEQ
>
>
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