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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