[aprssig] APRStt lives! (APRSspeak)

[Gregg Wonderly]

Robert Bruninga wrote:
>> If you pass out a pl tone for the event, could you not just 
>> provide them a short dtmf code to associate to there call
> sign?
> 
> Yes.  The APRStt spec fully allows for tactical calls as short
> as 3 digits.  The assumption is that for a local special event,
> everyone will probably be assigned these shorter calls to keep
> the air-time down.
> 
> But still everyone can also use their fully spelled out 16 digit
> DTMF callsign as well for other applications.

So rather than using PL tones, could we not do something like using the DTMF key 
associated with the last 2 characters of their call for example?  So, since I am 
W5GGW, I would use 49?  It could be the first and the last characters or 
something else that would provide a unique "tactical" identifier.

That would seem to be much more easily implemented and managed than PL tones, 
which provide all kinds of interesting issues.

Gregg Wonderly