The Crystal GUI subsection configures the frequency and the accuracy of the reference clock source (XO/ TCXO). Note that crystalaccuracy has two entries, one for Rx and one for Tx. Both numbers are needed to calculate the worst-case frequency offset betweenthe nodes and to select a channel filter in the Rx side accordingly.An on-chip capacitor bank presents the desired load to the HF crystal. It can be configured through the RAIL_GetTune() andRAIL_SetTune() APIs after RAIL is initialized, or through the CMU API before that.RX Crystal Accuracy in ppm• Description: Sets the Rx node crystal accuracy• Unit: ppm• Min value: 0• Max value: 200• Applicability: RxTX Crystal Accuracy in ppm• Description: Sets the Tx node crystal accuracy• Unit: ppm• Min value: 0• Max value: 200• Applicability: Tx