[aprssig] Wi-Fi Positioning System (WPS) for APRS

[Joel Maslak]

On Sep 2, 2006, at 12:16 AM, John Habbinga wrote:

> Why?  Well, if your computer is equipped with a Wi-Fi card (or
> internal) and not a GPS, then you can still deterimine your location.
> If you are indoors, where GPS doesn't work, Wi-Fi positioning would
> still work.  If you have a GPS, but don't want to wait 2 minutes for
> it to aquire a satellite signal, then Wi-Fi positioning can determine
> locations in just a couple of seconds.

In addition, GPS often doesn't work in city downtown areas, due to  
the urban canyons.  Yet, these places are rich in access points.