Hytera PD412i, Руководство пользователя

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8
Features and Operations
Power Level
Description
Power Level allows you to set the TX power level. High power can extend
the signal coverage, enabling you to communicate with farther radios.
Generally, we recommend you to adopt low power for battery saving.
Operation
Press the programmed Adjust Power Level key to toggle the power
level between high and low. When you switch to high power, a high-
pitched tone sounds; when you switch to low power, a low-pitched tone
follows.
Covert Mode
Description
Covert Mode allows you to disable all the visible or audible indications
programmed by your dealer, such as the LED indicator, vibration and
tones, for communication in covert situations. This feature is mainly used
in special missions.
If an audio accessory is connected to the radio, the
radio will output the voice and alert tones via the audio
accessory when the Covert Mode is enabled.
Operation
Press the programmed Covert Mode key to enable or disable this
feature.
Note
Time-out Timer (TOT)
Description
Time-out Timer (TOT) allows you to set whether the radio will
automatically terminate transmission and keep beeping when the TX
time (60 seconds by default, and it is programmable via CPS) expires.
To stop beeping, please release the
PTT key. You must wait for a certain
time period (preset by your dealer) before you can hold down the PTT
key to transmit again. This feature is to prevent any user from occupying
a channel for an extended period and to avoid radio damages due to
overheat.
Operation
This feature needs to be programmed via CPS by your dealer.
Busy Channel Lockout
Description
Busy Channel Lockout can prevent radio user from interfering other
transmitting radio users on the same channel. When the channel is
busy, the radio will beep when you hold down the PTT key to transmit,
indicating the channel is busy. You can hold down the
PTT key to
transmit when the channel is free.
Operation
This feature needs to be programmed via CPS by your dealer.