[GreenKeys] 75 baud RTTY

[Harold Hallikainen]

On Sun, May 21, 2023 8:58 am, Russ Miller wrote:
> Jim,
>
> One thing that changed from the 1950s?
>
> 850 shift was hampered with selective fading.  170 shift improved copy
> during those situations.
>
> Russ
>

But, does 850 Hz work better with dynamic threshold control or "slideback
voltage"? With 170 Hz shift, it is more likely that both tones will fade
into the noise than with 850 Hz shift where MAYBE one tone is still there
during a fade.

Harold
https://w6iwi.org/rtty