How to modify RF transmission power using CSR Bluetooth Chip

Bluetooth from class1 ~ Class3 transmission distance is MB ~ 3 M. The typical maximum transmit power value is as follows:

• Class 1: 0 to + 20 dBm
• Class 2:-6 to + 4 dBm
• Class 3: up to 0 dBm

You need to modify these pskeys first. Crystal frequency trimMake the crystal oscillator of the entire chip normal. Then adjust it as needed. TX and Rx Pio ControlTo see if external RF amplification is required. Last adjustment required Default transmit powerAnd Maximum transmit powerFor more information, see the help description in pstool.