Motorola hidden options
Mototrbo XPR, DGM and DGP
Display RSSI - press the left arrow 3 times then press the right arrow 3 times.
Test menu -
Mototrbo ION
Display RSSI - press 5 times 2 dots key.
MTM5400
Test menu -
Info Menu - * + # + Menu + Right Arrow.
RSSI meter bars values
4 bars -97 dBm 3 bars -102 dBm 2 bars -105 dBm 1 bars -108 dBm 0 bars -110 dBm