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Comment Re:Dupe (Score 1) 140

"Shielded". You say that as if directional antennas are an on or off thing. GPS signals are very weak and in this case the false signal is within throwing distance of the antenna. 60 dB would be a great (unobtainable even?) ratio between above and underneath, and yet mere 1 W signal would overwhelm the real one at that ratio.

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