User's Manual

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3.4 Changing Channels

The PMR has 8 available channels.

Press the button once, the current channel number

flashes on the LCD Screen.

Press the or button to select the desired

channel. The channel changes from 1 to 8, or vice versa.

Press the button to confirm the channel setting.

UP DOWN

PTT

To communicate with

other PMR users within range, you must all have your PMR

tuned to the same channel.

Note: Refer to the "Channel Table" section of this Owner’s Manual for

detailed frequency listing.

3.4.1 Setting the CTCSS sub-channel

Each channel also has 38 sub-channels to let you set up group

of users within the same channel for more private

communication. If you have set the sub-channel, you can only

communicate with other PMR users tuned to the same channel

and sub-channel.

To Turn ON;

To switch OFF;

Press and hold the button until the LCD Screen

turns ON and displays the current channel.

Press and hold the button until the LCD screen

turns blank.

POWER

You can hear a musical tone each time to confirm.

3.3 Adjusting the Speaker volume

The volume level is shown by vertical bars on the LCD screen.

You can change the volume while using your PMR, or while

the unit is idle (switched on but not in use).

Press the button to increase, or press the button

to decrease the speaker volume.

UP DOWN

3.2 Turning the Unit ON/OFF

To turn the sub-channel function off, simply set the sub-

channel to (zero). You can communicate with any PMR user

set to the same channel who also turns off the sub-channel

operation (or whose PMR unit does not have the feature).

Press the button twice, the current CTCSS sub-

channel number flashes on the

LCD Screen.

Press the or button to select one of the 38

CTCSS sub-channels.

Press the button to confirm the sub-channel setting.

UP DOWN

PTT

Transmitting and Receiving

transmission is 'one way-at-a-time.' While

you are speaking, you can not receive a transmission.

is an open-license band. Always identify

yourself when transmitting, as other people may be

communicating on the same channel.

The Terrain 550

3.4.2 Receiving a Call

The unit is continuously in the Receive mode when the

unit is turned ON and not transmitting. When a signal is

received on the current channel, " " will be displayed

on the LCD Screen and receiver LED lights up.