[time-nuts] From GPS World - Lightsquared has been given the goahead

jimlux jimlux at earthlink.net
Wed Feb 2 14:45:29 UTC 2011


On 2/2/11 6:31 AM, Mark Spencer wrote:
> Hopefully timing receivers using elevated gps antennas with band pass filtering
> (ie. the 58532A or equivalent..) and a good sky view and strong signal levels
> will be more resistant to out of band interference than a typical consumer grade
> portable GPS with a built in antenna at ground level with a sub optimal sky
> view.  In my oppinion timing applications are likely to be one of the few GPS
> applications where a reasonable mitigation path exists (ie. band pass filters
> could be added between the receiver and the antenna, antennas with modified
> radiation patterns could be used etc..)
>
>
>

what was interesting is that the jamming/fail to get fix was at a closer 
distance for the consumer receiver than for the FAA approved receiver 
for aircraft.  Maybe it's better signal processing in the (presumably 
newer) consumer receiver.




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