Basic Operations

Switching the radio ON and OFF

To switch the radio on:

1)Rotate the “PWR/VOL” knob clockwise until the radio is switched on. The CPU will start an auto test as follows:

LED will glow GREEN, then RED and turn OFF.

LCD will display all segments and icons. The letters "PS"("PASS") will be displayed followed by a long beep.

LCD will display the last operating mode.

The self-test goes very fast.

2)After the auto test has been carried out LCD will show the following data:

The channel number. (2 numeric characters).

NOTE: About 0.5 second after you select a new channel or change operation mode, the last status is automatically saved. When the Radio is turned on, the most recently used channel is displayed.

NOTE: the following icons will be displayed depending on the operating mode.

The currently selected TX output power: LOW for low or nothing for high in the lower left corner of the LCD.

A small “” is displayed in the lower right corner of the LCD if the channel is in the SCAN list. (if enabled)

A “P” is displayed to show that the channel is in the priority Scan list. ( if enabled)

“SAT” in the upper left corner indicates that the channel is a GROUP CHANNEL (for CTCSS or DCS tone if enabled).

Battery” icon when visible indicates battery is low.

VOX” is displayed when “VOX” function is enabled.

A “Key” icon to indicate that the keypad is locked.

NOTE: When “VOX” is enabled, ““PTT”” button is not working.

NOTE: When keypad is locked; only “PTT” button is enabled (with exception of VOX enabled).

To switch the radio off, rotate the PWR/VOL knob counterclockwise.

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Midland Radio 70-440BP user manual Basic Operations, Switching the radio on and OFF, To switch the radio on