[ntp:questions] GPS Weakness Could Sink Wireless

Uwe Klein uwe at klein-habertwedt.de
Fri Dec 13 15:59:08 UTC 2013


John Hasler wrote:
> I wrote:
> 
>>In any case designers of things like cell towers should no more assume
>>that GPS is always "just there" than they should assume that electric
>>power is always "just there".
> 
> 
> Uwe writes:
> 
>>This is a _basic_ shortcoming in CDMA as designed and in use.
>>( think of it as the NTSC of mobile phone systems ;-)
> 
> 
> But Terje points out above that they use Rb oscillators so short (or
> medium) term loss of GPS by cell towers is not actually a problem.

you still have the higher requirement of syncronicity limiting your design.

uwe



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