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Phase difference detector, 433.92MHz


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Hi, I am hoping to detect the phase difference from a 433.92MHz carrier signal detected at two antennas, where one antenna is about a 1/4 wavelength further from the transmitter than the other.

The circuit looks as follows. I use PLLs to ensure phase lock on the carrier and pass the 2 signals to a phase detector:

(Antenna 1)

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