[RTTY] More GRITTY observations

[Phil Sussman]

After reading the information referenced, I wonder if the assumption can
be made that the "USOS sender assumes that the receiver has shifted to
LTRS shift after the sender transmits a space character."

Perhaps I'm confused. Wouldn't that depend upon how either station
handled USOS receive? Have we not, merely reduced the 16 possibilities to 8?
And .. if I Tx and Rx with USOS active, aren't there still 4 combinations?

My question envisioned how to set up my station in the most favorable way in
light of the 4 possibilities potentially used by any other station. Yes, it
is redundant if both stations run USOS. However, what is the best set-up for
me, if I don't know what the other station is doing?

Thanks,

73 de Phil - N8PS





Quoting Kok Chen <chen at mac.com>:

> I had described USOS in the "Unstructured Digital Modes" section of  
> Chapter 16 of the ARRL Handbook , viz. a space character is  
> considered to be an implicit LTRS shift by both USOS sender and USOS  
> receiver.  This is why David G3YYD had mentioned that a LTRS shift  
> after a space character is redundant.  It is only redundant when  
> both sender and receiver use USOS,
>
> Please use that information (i.e., USOS sender assumes that the  
> receiver has shifted to LTRS shift after the sender transmits a  
> space character) to generate your own scenarios.
>
> 73
> Chen, W7AY
>
>