"I bet (a small bet anyway) my cell phone carrier doesn't save receive
frequency data accurate enough to determine what direction I am driving
though."
You are probably right since the doppler shift is pretty small ( at least I
hope it is :) ) on a
cellphone. The satellite access is MA-TDMA so the burst timing and frequency
offset need to be tracked.
This is a useful performance metric when troubleshooting connectivity issues in
a big network.
- Howie AB2S
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