USRP RIO IQ Imbalance Calibration

[AdeelAnwar]

While using NI-USRP driver, uhd_cal_rx_iq_balance.exe or uhd_cal_tx_iq_balance can be used for USRP calibration. But how can we re-calibrate USRP-RIO while using RIO driver?

I am asking this because i am receieving another signal (image signal) at my receieved spectrum and this is due to IQ mismatch of the RF-Front End (Tx & Rx). So i just wanted to know about the USRP-RIO re-calibration procedure.

Thanks,

     Adeel

[smoores]

Adeel,

Can you provide a screen shot of the image you are seeing in your spectrum?  Which USRP-RIO are you using (model)? 

Are you looking to adjust for IQ Imbalance?  If so, this is already done for you in the simple streaming project: