gnuradio - Retrieve data from USRP N210 device -


the n210 connected rf frontend, gets configured using gnu radio companion.

i can see signal fft plot; need received signal (usrp2 output) digital numbers.the usrp_sense_spectrum.py output power , noise_floor digital numbers well.

i appreciate side.

answer usrp/gnu radio mailing lists:

dear abs,

you've asked question on discuss-gnuradio , got 2 answers. in case you've missed those, , avoid people tell know:

sylvain wrote that, due large number of factors contributing see digital amplitude, need calibrate yourself, using system want use measure power:

you mean want signal power dbm value ?

just won't happen ... many things in chain, you'd have calibrate specific freq / board / gain / temp / phase of moon / ...

and explained if have mathematical representation of how estimator works, might able write custom estimator block both of values of interest:

>

i assume have definite formulas define estimator these 2 numbers. unless can directly "click together" estimator in grc, have implement it. in many cases, doing in python rather easy (especially if come python or matlab background), i'd recommend reading @ least first 3 chapters of https://gnuradio.org/redmine/projects/gnuradio/wiki/guided_tutorials

if these answers didn't out, think wise explain these answers lacking, instead of re-posting same question.

best regards, marcus


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