[aprssig] Project-25 for amateur radio

John Habbinga kc5zrq at gmail.com
Fri Aug 15 20:39:14 EDT 2008

Bob, there is a low-speed data mode transmitted along with digitized
voice on Project 25.  However, it passes data at 88.9 bit/s.  As far
as I know, there are no applications that has made use of this
feature.  I doubt that it would be very practical to use "APRS over
P25," but I could be wrong.

On Fri, Aug 15, 2008 at 3:38 PM, Robert Bruninga <bruninga at usna.edu> wrote:
> I noticed the QST article on Project 25 using digital voice on
> repeaters.
> I noticed a sentence about simple text transfer. And intended to
> bring the article to work with me for noon time reading, but
> forgot it.
> If the radios are capable of digitally exchanging callsigns,
> then there is no reason why they cannot appear on APRS just like
> DTMF users.  SO if anyone can point me to a point of contact
> within that project group, I'd like to invite them to consider
> joining the global APRS system too.
> See http://www.ew.usna.edu/~bruninga/aprstt.html
> Bob, WB4APR

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