[GreenKeys] SITOR / AMTOR / NAVTEXT protocols

tony j. podrasky hunybuny at eskimo.com
Thu Sep 20 18:15:25 EDT 2007


Hey Bob;

There's a mode called ALIST - which overrides the ACK/NAK
and let's you read the mail of 2 stations in communications.

73,
W6ESE - tony
NNNNZCZC

Bob Camp wrote:
> Hi
> 
> The problem with the "modern" protocols is that they are error  
> correcting / retransmit protocols. If the receiving end sends a "nak"  
> you transmit the same packet again. They all have provisions for  
> multiple packets in transit, so keeping things lined up is a pain.  The 
> character coding is normally straight ASCII plus a CRC or check  sum for 
> most of them.
> 
> Bob
> KB8TQ
-- 
Tony J. Podrasky | MicroSoft error messages written in Haiku:
                  |
                  |         Your file was so big.
                  |         It might be very useful.
                  |           But now it is gone.


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