Error: This board does not have the CAL antenna option, cannot self-calibrate.

[RoyM]

I'm using two USRPs (N210) connected via a cable and synchronised with a MIMO cable. I'm using them alongside GNURadio to transmit and receive multi tone signals and for the most part this has been successful.

However, I need to correllate the two signals and in doing so I need to calibrate the USRPs to reduce the IQ imbalance. When I do try and send the calibration commands to the USRPs I receive this error:

Error: This board does not have the CAL antenna option, cannot self-calibrate.

I'm not too sure if this is because my daughterboard is incompatible with self calibration or something a lot simpler.

-------------------------

-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes
-- Detecting internal GPSDO.... No GPSDO found
-- Running calibration for XCVR2450 TX
-- Daughterboard serial: F32FF9

[Johnnyg17]

Hi,

Since this is a question regarding GNURadio and, most likely, the Ettus driver (different than the NI USRP Driver stack), you will be best served by asking this question to Ettus Support.

Regards,

John Gentile

Applications Engineering

National Instruments

[RoyM]

I should probably of got back to this question earlier. 

It turns out the daughterboard I have can't perform self-calibration.