Thanks Marcus, A couple more questions on this:
[1] Would it be possible for us to buy a USRP X310 (which supports the reference power API), run uhd_power_cal and then transfer the UBX DB to the N210 and expect calibrated power measurements? Or does the reference power API need to be working on the N210 in order to apply the calibration data? [2] In order to get the reference power API to work on the N210, would that require changes to the N210 firmware, or just UHD? Regards, Ernest On Thu, Sep 9, 2021 at 7:34 AM Marcus D. Leech <[email protected]> wrote: > On 2021-09-08 5:27 p.m., Ernest Fardin via USRP-users wrote: > > Hi, > > Following up on this, the question I'm trying to answer is: "Can I > calibrate the rx power on an N210 + UBX platform?" > > With the N210, has_rx_power_reference() > <https://files.ettus.com/manual/classuhd_1_1usrp_1_1multi__usrp.html#af0307aa83d1454e92a7ec91fb4100b98> > returns False. Can I conclude from this that an rx power calibration is not > possible on this device? > > It means that there is no reference calibration API available for this > device. > > The calibration reference API is fairly new, so it will only be available > (at least initially) on newer devices. The N2xx series is about 10 years > old > at this point. > > > > On Tue, Sep 7, 2021 at 9:00 PM Ernest Fardin <[email protected]> wrote: > >> Hi, >> >> I'm trying to calibrate the receive power on a USRP N210 with a UBX >> daughterboard. Using UHD 4.0, I can get uhd_power_cal.py to run by adding >> an N210Calibrator class to usrp_calibrator.py. N210Calibrator overloads the >> USRPCalibratorBase class. >> >> class N210Calibrator(USRPCalibratorBase): >> """ >> N210/UBX Calibration >> """ >> mboard_ids = ('N210r4',) >> default_rate = 2.5e6 >> min_freq = 50e6 >> max_freq = 50e6 >> tune_settling_time = .5 >> >> When the calibration completes, the store() method in usrp_calibrator >> attempts to write the calibration table to the UBX with >> >> database.write_cal_data( >> cal_key, >> cal_serial, >> cal_data.serialize()) >> >> The chan_info string returned by the N210 is: >> >> {'mboard_id': 'N210r4', 'mboard_name': '', 'mboard_serial': '318EFF3', >> 'rx_antenna': 'TX/RX', 'rx_id': 'UBX-40 v2 (0x007c)', 'rx_serial': >> '318D55F', 'rx_subdev_name': 'UBX RX', 'rx_subdev_spec': 'A:0'} >> >> What values to use for cal_key and cal_serial? >> >> Thanks in advance! >> >> Ernest >> >> > _______________________________________________ > USRP-users mailing list -- [email protected] > To unsubscribe send an email to [email protected] > > > _______________________________________________ > USRP-users mailing list -- [email protected] > To unsubscribe send an email to [email protected] >
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