The user can select the frequency band and Tx power level to be used during the calibrations and monitoring. This is done using the rlRfTxFreqPwrLimitConfig API. The Tx power level and chirp frequency range for the active chirp is selected by the Profile Config. These two are not automatically interlinked to each other within the firmware, so the user could choose to use same settings for both calibrations and active chirps or keep them different.

To get the best accuracy from the calibrations, TI recommends always using Tx power setting of 0-dB backoff for calibrations/monitoring, even if the active chirps use a higher backoff setting. The calibration frequency range can be kept the same as that of the active chirps.

If using a 0-dB backoff setting during calibrations impacts the emission requirements, then TI recommends performing the Tx output power calibration with 0-dB backoff at the factory environment and using the save-restore feature of the calibration in the field operation. Refer to Section 5 for details on the save -restore process steps. During the factory calibration, a 0-db backoff can be used and the

calibrations saved, during the operation the RfInit calibrations are disabled and the saved calibrations results can be restored. The functional chirps can still use larger than 0dB backoff even if the calibrations were done using 0dB backoff.