On 5/18/15 11:06 AM, Brooke Clarke wrote:
Hi Bob:
In the link in the message from Brian it explains that iGPS is for
military users of the Iridium system.
The key feature is to allow a moving vehicle to lock on the GPS signal
while being jammed. They do that and also get a more accurate fix by
using signals from the Iridium satellites.
I see a potential problem in that the Iridium signals are close in
frequency to GPS and a broad band jammer might cause a problem for both
of them.
Any system that is concerned about jamming is probably going to be
immune to broadband jamming: after all, GPS signals are already below
the noise floor. Broadband jamming is a pretty ineffective use of RF power.
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