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Can not read appropriate transmit power value in QN908X BLE module while BLE advertising.

Question asked by Shah Dhruv on Feb 5, 2019
Latest reply on Feb 8, 2019 by Mario Ignacio Castaneda Lopez

I am using the qn908xcdk SDK in MCUXpresso IDE. Currently I am working on qn908xcdk_wireless_examples_bluetooth_wireless_uart_freertos example and I go through the code and I found some API which can set or get the advertising power level(dBm). I am using following API for reading the transmit power. By using bellow API generic callback(BleApp_GenericCallback) of gAdvTxPowerLevelRead_c event accrues and we can read the tx power from eventData.advTxPowerLevel_dBm but I observed that while advertising I got 3dBm power every time.

API to read the tx power level: Gap_ReadRadioPowerLevel(gTxPowerLevelForAdvertising_c, 0).Please guide me whether I should use above API or another for reading the transmitting power while BLE advertisement.