On 03/13/2011 08:33 AM, b...@lysator.liu.se wrote:
The military is the one service that won't be affected by this
interference.
They run on a different band, and their modulation is more robust than
the civilian side.
Could you deliberate a bit? I suspect that military receivers use L1 C/A,
L1 P(Y) and L2 P(Y). This is the exact same signals civilian geodetic
receivers has been using since about the Ashtech Z12 and its z-tracking.
http://www.prc68.com/I/DAGR.shtml#GPSs
It seems two out of three signals used by the military is affected by
interference close to L1 (1575MHz.)
While military receivers have better jamming resistance when tracking L1
and L2 P(Y), this improved jamming resistance is a matter of distance.
Get close enough and they will be blinded out too.
Cheers,
Magnus
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