GENERAL OPERATION

If a conventional system is selected, take the microphone off-hook and if someone is using the channel, voice is heard. If no one is using the channel, the squelch control can be adjusted counterclockwise as described in “Setting Squelch Control” on page 18 and noise is heard. It is not possible to unsquelch the transceiver in this manner when a Multi-Net or LTR system is selected.

Backlight Operation

The display and keypad backlight can be controlled by the BACK- LIGHT menu parameter (see page 40). The three states that can be selected are Bright, Dim, and Off. If this menu parameter is not select- able, the backlight is fixed in one of these states by programming.

System/Group Display Information

The selected system and group are displayed using either a Numeric or Alpha Tag display mode. The display mode is selectable if the S/G DISPL menu parameter is available (see page 33). Otherwise, it is fixed in one of these modes by programming.

Numeric Mode - In the numeric mode, the selected system and group numbers are displayed on the top line as Sxx and Gxx, and the group alpha tag is displayed on the bottom line. For example, System 1, Group 1 (CAR 220) is displayed as follows. The system alpha tag is not displayed in this mode.

System Number

Group Number

Group Alpha Tag

Numeric Display Mode

Alpha Tag Mode - In the alpha tag mode, the system alpha tag is displayed on the top line and the group alpha tag is displayed on the

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EFJohnson 002-9800-401 manual Backlight Operation, System/Group Display Information, Numeric Display Mode