User's Manual

TC-518 Owner’s Manual
21
Battery Strength LED Indication
70% - 100% Green
50% - 70% Orange
30% - 50% Red
10% - 30% No indication is shown when programmable key is pressed; LED
flashes red while radio is operating. While the radio standby, LED
flashes red and a low-pitched tone sounds at intervals of a preset
time. The interval can be set by programming software.
Less than 10% No indication is shown when programmable key is pressed; at
the time, radio can only receive or standby (Tx is disabled). While
the radio standby, LED flashes red and a low-pitched tone
sounds at intervals of a preset time. The interval can be set by
programming software. If [PTT] key is held down, an alert tone
indicating low-voltage Tx inhibt would sound.
Monitor / Squelch Off
z Squelch Off
Causes the radio to forcibly unmute speaker to here activities on the current channel, whatever
the receive condition is. The radio speaker outputs audio when audio signal is present, or
background noise will be heard if no audio signal is detected.
Press the function key to enter the Squelch Off mode, and press it again to exit.
z Squelch Off Momentary
Causes the radio to forcibly unmute speaker to here activities on the current channel, whatever
the receive condition is. The radio speaker outputs audio when audio signal is present, or
background noise will be heard if no audio signal is detected.
Holds down the function key to enter the Squelch Off Momentary mode, and release it to exit.
z Monitor
Carrier condition must be satisfied for the radio to unmute to an incoming call, regardless of