RE: [Discuss-gnuradio] IF sampling in ISM band

[Phaysal Khan]

Hi List,
Just re-stating the issues I am having with capturing IF samples of an RF signal: I am trying to sample a 16MHz wide spectral content from a signal, originally centered at 2.414 GHz. I am using RFX2400, gnuradio 3.1.2 and using following command:
 
python usrp_rx_cfile.py -f 2404.5M -s --no-hb -8 -N 40000 data1.dat

 using "-f 2404.5M" to get IF (downconverted) signal centered at 10MHz.
 using "-s --no-hb -8" to be able to capture 16MHz wide bandwidth.
 I am having following issues:
1. I am getting a downconverted signal centered at zero freq and not at 10MHz which I expected.
2. I can see downconverted signal's spectrum to be only +/-4MHz wide, and not +/-8MHz.
 
Any idea, what is causing these two problems here!?

 
Faisal

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