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Consider the below-pictured time difference of arrival system consisting of two plasma antennas* with opposing DC bias.

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Samples of time difference of a 100MHz signal are taken as the TDOA system is rotates through 360 degrees.

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What aspects of such an experiment may give rise to the illusion of such an anomalously large arrival time difference (~200ns) as the antenna points toward and away from the remote broadcast tower?

* A plasma antenna is a type of radio antenna in which plasma is used instead of the metal elements of a traditional antenna

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  • $\begingroup$ What's a plasma antenna? $\endgroup$
    – John Doty
    Commented May 12 at 0:01

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