uhd_cal_tx_iq_balance(1) Generate TX IQ Balance Calibration Table for a UHD Device


The Universal Software Radio Peripheral Hardware Drivers handle calibration information. This application reduces TX IQ imbalance within the specified frequency range using transmit leakage into the receive path. Remove all external hardware from the RF antenna ports before using this application. This can take up to several minutes with default settings.

NOTE: This application can only be used with the WBX, SBX, XCVR2450, and RFX daughterboards.


help message
enable some verbose
--args arg
device address args [default = ""]
--tx_wave_freq arg (=507123)
Transmit wave frequency in Hz
--tx_wave_ampl arg (=0.69999999999999996)
Transmit wave amplitude in counts
--rx_offset arg (=934400)
RX LO offset from the TX LO in Hz
--freq_start arg
Frequency start in Hz (will use beginning of frequency range if unspecified)
--freq_stop arg
Frequency stop in Hz (will use end of frequency range if unspecified)
--freq_step arg (=7300000)
Step size for LO sweep in Hz
--nsamps arg (=10000)
Samples per data capture


This manual page was written by Maitland Bottoms and Nicholas Corgan for the Debian project (but may be used by others).


Copyright (c) 2012 Ettus Research LLC

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.