DM588 Service Manual
In call hold state under digital mode, and exit when hold time out
Red Light Flashing Fast CPS reading radio parameters
Green Light Flashing Fast CPS programming radio parameters
3. Basic Operation
3.1.Powering On/Off
To power on the radio, hold down the On/Off key until the LCD screen is on.
To power off the radio, hold down the On/Off key until the LCD screen is off.
3.2.Selecting a Channel
In standby state, press the Volume/Channel knob to display an interface, and then rotate the knob or
press the Up/Down key to select a channel.
3.3.Adjusting Volume
When the radio is on, rotate the Power/Volume knob clockwise to increase the volume or
counterclockwise to decrease it.
3.4.Initiating a Call
If the selected channel is digital, you can call the default contact for the selected channel by pressing
the PTT key. This contact can be set by the dealer through programming.
3.5.Receiving a Call
When the radio receives RF signals on the selected channel and the squelch level is reached, the
green LED glows to indicate that carrier is received.
When the selected channel is digital channel and when it received individual call, group call or all call,
the radio will output the voice from the channel.
When the channel is analogue channel and when it received analogue signals with CTCSS matching
the one on this channel (or there is no CTCSS set on the channel), the radio will output voice form
the channel.
3.6.Calling Back
When the selected channel is digital channel and after a call is received, press the PTT button within
the calling duration to call back. If the calling duration is up, you need to initiate a call. The calling
duration can be set by the dealer.
When the selected channel is analogue channel and after a call is received, press the PTT button
and speak to the microphone to call back.
3
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