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[aprssig] 9600b UHF APRS IS THE FUTURE OF APRS

Steve Dimse steve at dimse.com
Mon Oct 9 15:47:49 UTC 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  
> sites.
>
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"  
answer.

Steve K4HG




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