[APRSSIG] Time to Clean Up the Satellites on APRS
Robert Bruninga
bruninga at usna.edu
Mon Oct 18 13:52:05 EDT 2004
>>> "Curt, WE7U" <archer at eskimo.com> 10/18/04 12:20:19 PM >>>
>> IMO, these should only include the FM birds used for
>> APRS and not any of the SSB Voice birds.
>
>Why... restrict APRS objects to just those birds useful for
>APRS? That part doesn't make sense to me. Ham radio
>is more than APRS, but APRS is useful to complement
>those other activities.
What he meant was FM birds. Not just "APRS" birds.
The resason not to put out the SSB birds is because
of the point of deminishing returns.
- This is an APRS service for APRS mobiles
- Fixed stations with PC's dont need it as they can run
any kind of satellite tracking program
- 99% or more of the mobiles only have FM
- Most all of the non FM birds require gain antennas
So serving the FM birds serves 100% of the APRS
mobiles that are interested. Doubling the channel
loading to serve also the SSB birds that can only be
used by 1% of the mobiles seems like QRM to the
other 99%.
Or something like that...
de Wb4APR, Bob
More information about the aprssig
mailing list