Pluto SDR QPSK example - data not received

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Dor Afriat
Dor Afriat 2022-9-25
Hello everyone.
I've been trying to use the Matlab QPSK example for Pluto SDR.
https://www.mathworks.com/help/supportpkg/plutoradio/ug/qpsk-transmitter-with-adalm-pluto-radio.html
https://www.mathworks.com/help/supportpkg/plutoradio/ug/qpsk-receiver-with-adalm-pluto-radio.html
I have two Pluto SDRs, one is Rev B and one is Rev C.
I run the Tx code first, and then run the Rx code.
The data is not received - I get gibberish on every run.
I tried to correct the central frequency by using the
Frequency Offset Calibration (Tx) with ADALM-PLUTO Radio
and the
Frequency Offset Calibration (Rx) with ADALM-PLUTO Radio models
and still nothing.
I also looked around the forum here and saw that reducing the sampling rate might help, but for me it still doesn't work.
anyone with an idea how to make it work?
Thanks!!
Dor.

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