The Transmit Power Level characteristic represents the current transmit power level in dBm, and the level ranges from -100 dBm to +20 dBm to a resolution of 1 dBm.
The value of the characteristic is a signed 8 bit integer that has a fixed point exponent of 0.
The value 0x12 is interpreted as +18dBm
The value 0xEE is interpreted as -18dBm
Mandatory
sint8
org.bluetooth.unit.logarithmic_radio_quantity.decibel
-100
20