Thanks Neel and Nick for your answers. I took note of your suggestions and I am doing some tests to figure out the idea a little more. So also I found the following pdf containing USRPB210 curves:
https://kb.ettus.com/images/c/cb/B200_RF_Performance.pdf I have a question here, on the slides titled as "RX Figure vs Gain w/ Frequency = XXXXX MHz", what does it mean the orange Gain curve with respect to the Gain (dB) axis? Does it mean, for example on slide 67 (which corresponds to my operation frequency), that when axis Gain (dB) equals to 53 the LNA real gain is around 33 dB? Thanks On Wed, May 23, 2018 at 8:52 AM, Neel Pandeya <neel.pand...@ettus.com> wrote: > Hello Oscar: > > The maximum safe input power for the B200/B210 is 0 dBm. But that is not > the level that is full-scale on the ADC. You will need to determine > empirically what input power level results in a full-scale signal on the > ADC. > > --​Neel Pandeya > > > > > On 22 May 2018 at 13:33, Nick Foster via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> Neither. It will depend on the gain setting and individual variation in >> the device. It is not calibrated to any specific dBm value and if you >> require dBm you must calibrate your readings against a known source. The >> listed maximum power figure is a maximum to avoid damage to the device. >> >> Nick >> >> On Mon, May 21, 2018 at 10:35 AM oscar llerena via USRP-users < >> usrp-users@lists.ettus.com> wrote: >> >>> Hi everyone >>> >>> On the following OpenBTS parameter: >>> >>> OpenBTS> devconfig GSM.Radio.RSSITarget >>> GSM.Radio.RSSITarget -50 [default] >>> - description: Target uplink RSSI (Received Signal Strength >>> Indication) for MS power control loop, in dB wrt to A/D full scale. >>> >>> The description indicates that the RSSI value is minus 50 dB with >>> respect to the A/D full scale. Now, according to Ettus on link [1] the >>> USRP B210 has a maximum input power of 0 dBm, although other sources [2] >>> state that maximum input power is -15dBm. In this case, which dBm power >>> level will mean the term "with respect to A/D full scale". >>> >>> Thanks >>> >>> [1] https://kb.ettus.com/B200/B210/B200mini/B205mini >>> [2] https://files.ettus.com/manual/page_usrp_b200.html >>> >>> >>> -- >>> Oscar Llerena >>> Tlf: 997575596 >>> _______________________________________________ >>> USRP-users mailing list >>> USRP-users@lists.ettus.com >>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>> >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >> > -- Oscar Llerena Tlf: 997575596
_______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
