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How to generate CW 1GHz to 4GHz on AD9361/FMCOMMS2

Question asked by mr_nazrin on Jan 8, 2018
Latest reply on Jan 9, 2018 by mhennerich

Hi Community team,

 

I just read previous post regarding sweep CW on entire band from 70MHz to 6GHz.  But I'm not very clear the correct procedures. Let say , I setup those signal on GNURadio, what is sample rate should be define, as I know maximum is 61.44MSPS that only generate CW max around 30.72MHz.

 

If I want to generate CW ( using Signal Source module) on 1Ghz, should I define my sample rate to more than >3GHz !

I try to change the sample rate >61.44MSPS, appear notification:

Unable to write attribute in_voltage_sampling_frequency:-22

Unable to write attribute out_voltage_sampling_frequency:-22

 

But gnuradio still able to execute and I believe the result display is not correct.

 

OR

 

if I want to generate CW 1Ghz, I should set the signal source (for example) 10Mhz and change/sweep LO to 1GHz, 1.01GHz, 1.02 Ghz,.....3.99Hhz and 4Ghz. I'm right?

 

Thank you

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