Hytera F-412, Руководство пользователя

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3. Press the PTT key to confirm your selection.
In the sleep mode, the radio does not receive or send any signal. Therefore, when you must respond to
emergencies, do not enable the Sleep Level feature.
7.11 Battery Save
The Battery Save feature allows the radio to get maximum operational life on a single battery charge. When the
radio does not detect any activity or operation for three seconds, it enters the battery save mode.
7.12 Low Battery Alert
When the radio is low on power, flashes on the screen and an alert tone rings when you press the
PTT
key,
indicating that the radio enters the low battery alert mode. In this mode, you are not allowed to send a call tone or
initiate a call.
To exit this mode, charge or replace the battery.
7.13 Time-out Timer (TOT)
The purpose of TOT is to prevent any user from occupying a channel for more than 60 seconds. After 60 seconds,
the radio stops transmitting and keeps beeping. To stop beeping, release the
PTT key.
7.14 Auto Squelch
The Auto Squelch feature allows the radio to improve voice clarity during the call by automatically removing
background noise.