Dear Marcus & Vitt, Thanks for your suggestion. As I am new in this field I don't know how to calibrate spectrum analyser with usrp. Is there any video tutorial or any website link you can provide will be helpful? I have searched on internet but didn't get a thing for calibration.
Suggestion from other members is also welcome. Regards Prabhat On Tue, Apr 24, 2018 at 3:03 PM, Müller, Marcus (CEL) <[email protected]> wrote: > You'll have to calibrate that yourself. There's no fixed formula for > all possible individual devices, and all possible signals (with all > possible PAPRs, which is especially relevant for OFDM). > > Best regards, > Marcus > > On Tue, 2018-04-24 at 13:05 +0530, Prabhat Kumar Rai wrote: >> Hello, >> >> I am using tx_ofdm.grc file to transmit a signal via USRP B210. I am >> fixing my system as center_freq 1.8GHz, BW 20MHz, Sample rate 1.92M, >> Gain 20 dB, when I am checking the gain in the spectrum analyser it >> comes out to be -77dBm, I know that channel is giving me around 30 dBm >> attenuation still I am unable to compute the actual transmit power of >> usrp. >> I know that only way to know transmit power is using the combination >> of frequencies, sampling rates, master clock rates, analog bandwidths >> and gain but don't know how and where to use them, all of them are >> already in a usrp_sink block. >> >> Is there any other way to compute actual transmit power of Usrp or any >> other formulae??? >> >> >> I have to use that power for RSSI calculation. >> >> >> Regards, >> Prabhat >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> [email protected] >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
