[aprssig] APRStt lives! (APRSspeak)
Gregg Wonderly
gregg at wonderly.org
Tue May 18 16:46:59 EDT 2010
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
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