Hello
I've recently run the uhd_power_cal.py script to calibrate the RX paths of a B200mini using a calibrated signal generator.
It generated two files, saved at /home/username/.local/share/uhd/cal:
- b2xxmini_pwr_rx_rx2_33ECA1A#A.cal
- b2xxmini_pwr_rx_tx+rx_33ECA1A#A.cal
Using python, I have the following code:
print(f"RX info: {usrp.get_usrp_rx_info()}")
This returns the following:
RX info: {'mboard_id': 'B200mini', 'mboard_name': 'B200mini', 'mboard_serial': '33ECA1A', 'module_serial': '33ECA1A', 'rx_antenna': 'TX/RX', 'rx_id': 'Unknown (0xffff)', 'rx_ref_power_key': 'b2xxmini_pwr_rx_tx+rx', 'rx_ref_power_serial': '33ECA1A#A', 'rx_serial': '', 'rx_subdev_name': 'FE-RX1', 'rx_subdev_spec': 'A:A'}
Running the following functions return false however.
usrp.has_rx_power_reference()
uhd.usrp.cal.database.has_cal_data('b2xxmini_pwr_rx_tx+rx', '33ECA1A#A'):
Why? How can I use the calibration file to obtain estimated received power level at the RX side in dBm? This is not clear in the documentation. i would like to do this for the TX side as well.
Thanks!
References:
