Daughtercard is WBX, so how much gain should I achieve in Spectrum analyzer?
On Mon, Dec 2, 2024, 9:30 PM Marcus D. Leech <patchvonbr...@gmail.com> wrote: > On 02/12/2024 05:43, Muhammad Anas wrote: > > Dear, > > I'm using USRP N210 with GNU radio companion for transmission of signal of > 50M Hz and testing the signal on the R&S FSH20 Spectrum analyzer using SMA > cable, unfortunately I am not getting the desired gain level of 20 dBm > according to the datasheet of USRP, in the spectrum analyzer. I'm getting > -92 dBm at 0 level gain from the usrp sink block in GNU radio and getting > the only max -68 dBm gain at 25 gain level from USRP sink block. After 25, > to even 100 level, I'm still getting the -68 dBm at the receiving point. > Here are my settings of FSH20: > > Ref: -20 dBm > Att: 20 dB > RBW and VBW: 30k Hz > SWT: 1.29 s > > Kindly, help me that if the problem is with the USRP or I will do > something to achieve the desired gain of 20 dBm, without using any external > amplifier. What are the reasons behind this problem and how I can diagnose > them. > > Regards > Muhammad Anas > > You haven't said which daughtercard you're using. I don't think ANY of > our radios will produce +20dBm, even at > MAX gain with high baseband magnitude. > > > > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-le...@lists.ettus.com >
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