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English
MTH650 Overview
Controls and Indicators
The numbers below refer to the illustration on the inside front cover.
Number Description
1 Antenna
2 Upper Microphone.
Activated during half-duplex calls such as Group.
3 External Antenna Connector.
Used with the digital car kit to connect the RF signal to
the external antenna.
(At the back of the MTH650)
4 Alphanumeric Display.
Provides four lines of 14 characters with backlighting.
5 Send/End Key.
Used to initiate or answer calls, end calls (not Group
mode) or send status and text messages.
6 Four-Way Navigation Key.
Press up, down, left or right for list scrolling while
moving around the menu hierarchy or for alphanumeric
text editing.
7 Audio Accessory Connector.
(At the side of the MTH650)
8 Alphanumeric Keypad.
Use the keypad to enter alphanumeric characters for
dialing, address book entries and text messages.
9 Lower Microphone.
Activated during full duplex calls such as ‘Phone’.
10 Accessory Connector.
Provides connection for accessories.
(At the base of the MTH650)
11 Loud/Discreet Mode Key
Selects earpiece audio (Discreet mode) or loudspeaker
(Loud mode).
12 Loudspeaker (under keypad).
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