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Written by AG7GM Dan on 2025-01-16 at 18:14

Lately I have been wondering if anyone has worked toward making several #NooElec NESDRs phase-coherent?

If one of you knows of such an attempt, can you point me to them please?

[#]hamradio #sdr

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Toot

Written by Roland Turner on 2025-01-18 at 03:09

@AG7GM

The approach taken was to tune oscillators precisely (using some synchronising signal from phone towers!), then listen to a single-location broadcast transmitter immediately before/after each location attempt and then correlate. Once the correct offset for the broadcast station is calculated, it's reasonable to use it for the rest of the calculation on the basis that drift is unlikely to be a problem over the several seconds of the location attempt.

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