On 17/07/2024 09:39, Brais Ares Fernández wrote:
Hello, Ron. Thank you for the answer.

I've already tried but it seems to do nothing:

$ sudo /lib/uhd/examples/tx_samples_from_file --freq 1500e6 --rate 10e6 --gain 20 *--bw 10e6* --type float --file ~/OFDMsignal.raw --args="name=sdr1"

I even tried weird values like 100e3 or 100e6, but no apparent effect over the spectrum at all.
The CBX doesn't support variable analog bandwidth.

Is your signal file actually sampled at 10e6 SPS?

What happens if you reduce the sample magnitude on your input file to something like 0.8 and re-try?

Are you certain that the input signal doesn't already have these artifacts in it?

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