[GreenKeys] M19 Current Loop Testing

[steve bennett]

 Try one of these if you can find one.It's a RTTY modem. It will take audio from iTTY and produce the current loop signals.
https://www.w6iwi.org/rtty/tu170/

-Steve
    On Thursday, March 17, 2022, 08:23:26 PM EDT, Matthew Wagner <mattwagner92597 at gmail.com> wrote:  
 
 Hi all,
I'm relatively new here, but I've been working on my first restoration (an M19) and I'm pretty close to having it done. The only thing left to test out is the actual Tx/Rx loop circuits. 
I'm not entirely sure where to start out looking for something to interface with the 60mA loop. Preferably RS232 or USB to make things easier. I want to eventually get it up on ITTY once everything's working properly. 
If anyone has some pointers on some gear to start looking for, I'd appreciate some direction. 
Much Appreciated,Matt Wagner______________________________________________________________
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