[aprssig] APRS Telemetry Question (BLN#s)
bruninga at usna.edu
Fri Oct 12 15:26:47 CDT 2012
> Bulletins are... sent using the same format as text messages,
> they only have BLN as the first three characters...
Correction: They have a required four byte field with the first 3 bytes
being BLN. But a 4th letter or number is required. That 4th byte (either
a letter or number) is always used to sort multiple BLN#'s from the same
sender on receipt so that a multi-line bulletin (paragraph) can be assured
of being VIEWED by the recepient assembled in sequence independent of
individual time of rcepit.
Also, any IDENTICALL BLN# must OVERWRITE any previous BLN# so that these
same multi-line BULLETINS can be line-by-line updated or edited by the
sender and till be seen in the full edited form on receipt.
I am taking the above sentence out of context, so ignore if this comment
does not apply...
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