SMS wrote:
> I was just up in Yosemite this past weekend. AMPS is still on. It comes
> from Golden State Cellular. However I did notice a lot more CDMA
> coverage than before. The cabin we stayed at in Yosemite West is pretty
> far from the public road (41) and I had both CDMA and AMPS coverage.
> There was no GSM coverage. Ditto for MidPines, on 140 into Yosemite. I
> was able to get CDMA and AMPS, but no GSM at the restaurant we stopped at.
>
> Yosemite Valley has AMPS, CDMA, and GSM coverage.


How do you determine which coverage you have in an area, and who it
comes from?