User's Manual

14221-1510-4440, Rev. B
10
FRONT VIEW
Figure 3-2: Remote-Mount XG-25M Mobile Radio (With Optional Remote-Mount Kit Applied)
The XG-25M radio is designed to operate in a mobile environment, typically within a motor vehicle. It
must be connected to an external transmit/receive antenna such as one mounted to the vehicle’s rooftop or
trunk lid. Several different types of external-mount antennas are approved and available for use with the
radio, as listed in Table 4-4 (page 15).
The radio provides half-duplex voice and data communications. Voice communications are accomplished
via a “push-to-talk” (PTT) type microphone and an external speaker connected to the radio.
The radio features a large text and graphics-based liquid-crystal display (LCD), and front panel controls
for user control of the radio.
The XG-25M must be powered by an external +13.6-volt (nominal) DC power source. In mobile
applications, the motor vehicle’s electrical system is utilized as the source of DC power. Specifications
are included in Section 2 of this manual. In the remote-mount application, the control head does not
require its own DC operation power source; it receives DC operating power from the radio via the remote
control cable.
The XG-25M may be equipped with an optional built-in Global Positioning System (GPS) tracking
receiver. The GPS antenna can be integrated into the mobile transmit/receive antenna (i.e., a
“combination” antenna). Alternately, the GPS antenna can be located/mounted completely separate from
the mobile transmit/receive antenna.
The XG-25M exceeds many tough environmental specifications included within military standard
MIL-STD-810G, the radio industry standard TIA/EIA-603, and the radio standard established by the U.S.
Forest Service.
The radio supports operation on APCO Project 25 compliant Common Air Interface (P25 CAI) radio
networks, and operation in a talk-around mode in accordance with the APCO Project 25. P25 Phase 1
radio systems utilize Improved Multi-Band Excitation
®
(IMBE) speech and data compression technology.
P25 Phase 2 radio systems utilize Advanced Multi-Band Excitation Plus 2
®
(AMBE+2
®
) speech and data
compression technology. Both of these compression technologies were developed by Digital Voice
Systems, Inc.
Harris recommends the buyer use only an authorized representative to install and
service this product. The warranties provided to the buyer under the terms of sale will
be null and void if this product is installed or serviced improperly, and Harris will have
no further obligation to the buyer for any damage caused to the product or to any person
or personal property.
CAUTION