Calibration

 

 

 


 

About

Calibration reduces a spur in the center of the display and strong signal images, both for receive and transmit. It is only possible to calibrate the Lime system once it has been started and running for about one second. Calibration values are restored whenever possible.

 

Radio Panel

The Radio panel (below) has options for RX and RX calibration.

  • RX Calibrate is always enabled,
  • TX Calibrate is only enabled while you are transmitting.

The ✓ indicates the current calibration is valid, ✗ indicates that calibration is required. When you start a LimeSDR or change frequency previoyus calibration values will be used if available.

RX Calibrate

When you press RX Calibrate the software will adjust gains in the LimeSuite support software to ensure the calibration succeeds. During calibration the waterfall will normally show higher values while calibration is running.

Note: calibration is part of the Lime support library. When you press RX Calib / TX Calib and  the receive gain / transmit drive is too low then an error is displayed. When calibration runs automatically any error is suppressed.

 

Automatic Calibration

In the ... More options select the time after which receive calibration is automatically started. It is only possible to calibrate the Lime system once it has been started and running for about one second. Calibration values are restored whenever possible.

When calibration runs automatically any error is suppressed.

 

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