Control Head Cable; Microphone; Keypad Mic; External Speaker - Motorola ASTRO APX O2 User Manual

5-2
5.1.3

Control Head Cable

The control-head cable connects the control head to the transceiver. The cable is routed along the
motorcycle's frame and has weather-resistant connections at both ends. Excess cable is coiled
under the transceiver inside the weather-resistant enclosure.
Each end of the cable is strain-relieved with jackscrews at the control head and the transceiver.
The cable is shielded to reduce the effects of radio frequency interference and ignition sense noise.
5.1.4

Microphone

A weather-resistant, palm microphone and coiled cord plug into a pigtail connector on the control
cable. The microphone attaches to a hang-up bracket located within easy reach of the motorcycle
rider. The coiled cord is long enough to be operated by someone standing next to the motorcycle, yet
short enough to not interfere with the motorcycle's steering or operation.
5.1.5

Keypad Mic

The Mobile Keypad Microphone (Mic) is a full keypad handheld microphone. The keypad on this
microphone is intended to assist in navigating through the menus on its parent device, as well as
entering information such as phone numbers and menu picks.
5.1.6

External Speaker

A 3.2-ohm, 10-watt-rated-audio-power, external speaker is mounted on the front of the motorcycle.
The speaker cable is routed along the motorcycle frame to the transceiver's rear accessory
connector. A sealed, weather-resistant, speaker-muting (toggle) switch is mounted on top of the
speaker.
The external speaker connects to the rear accessory connector of the transceiver.
5.1.7

Headset Capability

The motorcycle radio is compatible with headset accessories that would provide hands-free
operation of the radio. Motorola does not manufacture headset equipment, but provides the
interconnection for headset equipment with the motorcycle radio. Aftermarket headset equipment is
available through Motorola (see
To avoid possible injury to hearing, the audio setting in the mobile radio MUST be
!
confirmed, if the Motorola mobile radio is used with any motorcycle helmet headset.
See CPS Help for details.
C a u t i o n
5.1.8

Antenna

The antenna(s) are mounted on top of the transceiver's weather-resistant enclosure.
The enclosure's metal lining acts as the antenna's ground plane.
5.1.9

Ignition Sense (ACC) Wire

The ignition sense wire connects to the motorcycle's fuse box and is routed along the motorcycle
frame to the transceiver's rear accessory connector.
The radio is wired so that transmission is inhibited if the motorcycle's ignition sense switch is off.
If the PTT switch is pressed with the ignition sense off, a low-frequency tone sounds. The receiver is
controlled by the control head on/off switch.
Motorcycle Radio Installation Motorcycle Radio Description
Appendix A: Replacement Parts Ordering).
6878215A01