[aprssig] 9600b UHF APRS IS THE FUTURE OF APRS
steve at dimse.com
Mon Oct 9 10:47:49 CDT 2006
On Oct 9, 2006, at 11:29 AM, Gregg Wonderly wrote:
> Cellular and wide area network technologies use higher frequencies
> and lower power to simplify life and create a more dependable
> system, not to cause themselves to spend more money on more cell
Actually, they do want a frequencies that allows more cell sites, or
at least they want one that allows them to match the cell sites to
the demand. If you have a hundred users in a city, then a VHF
frequency allows you cover the city with a handful of cells, or even
a single one. If you have a million users, you need each frequency to
be reused multiple time in the same metro area. For that, higher
frequencies with their greater path loss are ideal.
Does APRS have a hundred users or a million in a city? Do you want
one or two digis, or a hundred mini-digis?
As long as the APRS answer is a hundred users, 2 meters is the "best"
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