[time-nuts] Cell timing error

Magnus Danielson magnus at rubidium.dyndns.org
Sun Dec 16 00:12:13 UTC 2012

On 12/16/2012 12:59 AM, lists at lazygranch.com wrote:
> I can assure you the GSM shacks have GPS timing in them. I can dig up the photos if you want.

Depens on how the network was built. GSM does not need anything but +/- 
50 ppb timing. The PDH backhaul will provide that usually. The time that 
the mobile get's comes from the controler, which could be slaved using 
NTP... or not. It may not even transfer time, since this is an option 
which many but not all operators have enabled.


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