Motorola APX Series Manual

APX 4500 O2 CH
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 Push-To-Talk (PTT) Button
IDENTIFYING RADIO CONTROLS
The PTT button on the side of the radio serves two basic
purposes:
• While a call is in progress, the PTT button allows the radio
to transmit to other radios in the call.
Press and hold down PTT button to talk. Release the PTT
button to listen.
The microphone is activated when the PTT button is
pressed.
• While a call is not in progress, the PTT button is used to
make a new call.
Channel
Announcement
PTT

Motorola APX Series Specifications

General

Operating Temperature	-30°C to +60°C
Bluetooth	Yes (Optional)
GPS	Yes (Optional)
Frequency Range	VHF, UHF, 700/800 MHz
Dimensions	Varies by model
Weight	Varies by model
Encryption	AES, DES
IP Rating	IP67
Digital Technology	P25 Phase 1 and Phase 2
Display	Full-color, high-resolution display