Ive done a bunch of research (see:googling) on the topic of RTTY standards, and the short answer is, not really.

2125/2295 are the only standard Ive seen in all my reading. I also generally saw that LSB was suggested in most cases, but again, thats why we have a reverse switch.

Basically in my few real-life "oh I found rtty" using my Hal st-6, I just adjust the dial until the machine goes to town, and if its gibberish, flip the reverse switch and hope for the best.

I also notice that almost all convertors are adjustable too.

Jeff KC3GJX





On Aug 25, 2023, at 3:26 PM, Nick England <[email protected]> wrote:


I'm attempting to get a Robot 800 TU going. The manual (circa 1981) says Low Tones (1275/1445) are used for HF and High Tones (2125/2295) are used for VHF. "Return to factory" if you want to change....

Now I'm a newbie when it comes to RTTY, but I really would like to know if there was ever a time when people agreed to one standard and stuck with it for more than 6 months?

Nick England K4NYW
www.navy-radio.com
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