VIA Platform RF Calibration Summary VIA Platform RF Calibration Summary 1. Receiver Calibration: For zero-IF receiver calibration, you can use the following instructions for manual calibration. AMTS has achieved automation, but the method and principle are consistent with the following document, except that the calibration gain GAIN STATE starts from gain 4. 1.1 For the VIA platform, a zero-IF receiver is used, so the data root formula of the Rx baseline calibration project is different from that of the superheterodyne receiver. Therefore, ETS needs to modify some options to support the DCR format. After opening ETS, select the menu ETS/CP/DB/DB Templates/PCS/CP DB HWD PCS RX AGC. The dialog box after opening is consistent with the figure below. If it is inconsistent with the figure below, you can use the following steps 1) Select the menu ETS/File/Defines, and select SYS_RF_MAXIM_DCR_V4, or SYS_RF_PHILIPS_R2A. in the RF Target Option in the open dialog box. This option is related to the RF solution. 2) After selecting OK, close ETS, reopen ETS, and check whether the format is correct. 1.2 Preparation of calibration data in CP: When calibrating the Rx AGC baseline, the other two calibration items of Rx need to be cleared, otherwise it will affect the baseline result. There are two ways to clear, one is to clear all calibration data, and the other is to clear the specified items. 1) Clear all calibration data, select the menu ETS/CP/CP Clear, select RF for DB id, and then send the send command. Select the menu ETS/RF/RF Cal Initialize, select NVRAM for Cal mode, this method will clear all calibration data. 2) Clear some calibration data. This method can clear the calibration data that needs to be cleared without affecting other data. The method is to open the corresponding calibration item dialog box, write all data to 0, then send the Send command, and then select the menu ETS/RF/RF...
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