Troubleshooting 117The firmware and hardware versions, and yourradio’s frequency band are briefly displayed.Identifying the radio’s audible tonesThe radio’s audible tones can help you identify apotential problem:33.01.xx.0000B1 0106firmware versionhardwareversionfrequency bandB1: 136—174 MHzAudible tone MeaningOne short, high-pitched beepThe radio has been made inoperable(‘stunned’ or ‘inhibited’) by your serviceprovider.Two short beeps The radio has been made operable(‘revived’ or ‘uninhibited’) by your serviceprovider.Two low-pitchedbeepsThe radio’s temperature is high. (The radiowill continue to operate.)Two high-pitchedbeepsThe radio’s temperature is in the very highrange and all calls will now be at lowpower. If the radio’s temperature risesabove this range, calls will be inhibited.Turn off the radio and allow it to cooldown.