[time-nuts] Smart Phone time display accuracy...?

Mike Garvey r3m1g4 at verizon.net
Thu Mar 16 13:06:16 EDT 2017


CDMA mobile telephony needs system synchronization to +/- 10 uS in order to smoothly handoff a moving client from one cell to the next. Most systems use GPS to maintain this 10 uS.  This says nothing about how bad it could get after that.
Mike

-----Original Message-----
From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of Mike Baker
Sent: Wednesday, March 15, 2017 22:33
To: time-nuts at febo.com
Subject: [time-nuts] Smart Phone time display accuracy...?

Hello, Time-nutters--

Any thoughts on what the likely accuracy of smart phone time
displays might be?   I am thinking that the stacking of delays
along the path to its receive antenna plus any internal processing delays would accumulate to some unknown degree.  Any thoughts on this?

Mike Baker
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