[RTTY] USOS Question

[Phil Sussman]

--snip---

> With respect to Phil's combinations, the state of USOS RX on the sending 
> station and USOS TX on the receiving station don't matter. The correct 
> table is:

    Rich is correct with respect to the sending station. However, it does 
matter when the receiving station replies to an exchange and the former
sending station has to receive. Hence, my paradox.
    
>
> 
> Sending Station              Receiving Station
> 
> USOS TX off                  USOS RX off
> USOS TX off                  USOS RX on
> USOS TX on                   USOS RX off
> USOS TX on                   USOS RX on
> 
> The difficulty in deciding what to do about USOS rests mainly with the 
> TX side. The RX side costs nothing, you can turn it on and off in an 
> instant, and most software lets you see the other case more or less 
> easily. On TX, you have to make the decision as a setup decision; you 
> can't easily change it on the fly.
>

73 de Phil - N8PS