When I run the following command:

/usr/lib/uhd/examples/tx_samples_from_file --freq 2484e6 --rate 3e6 --gain 10 
--wirefmt sc16 --ref=internal --file 
/home/ubuntutx/uhd/examples/tx_transmit_data.dat --repeat 

UHD generates this warning:

“The requested interpolation is odd; the user should expect CIC rolloff. Select 
an even interpolation to ensure that a halfband filter is enabled.”

The transmission appears to run without errors, but I don’t see any signal on 
the spectrum analyzer. Could you please clarify what this warning means and if 
it might be related to why the signal isn’t showing up?

Thanks.
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