Manualshelf

Technical Manual

ManualsBrandsDatron World Communications ManualsElectronicsVHF Mobile Radio
51525354555657585960
GUARDIAN VHF 110W MOBILE 5-1
CHAPTER 5: RADIO SET AND ACCESSORIES
5.1 System Description
The Guardian consists of the following components:
• Receiver/Exciter/Control Module (RECM)
• Front Panel Interface
• Motherboard
• Heatsink Assembly
For available accessories, contact a Datron Guardian representative.
5.1.1 Mobile Radio
The Guardian is a vehicular-mounted transceiver capable of providing secure and non-secure communications over
the 136 to 174 MHz RF range. The radio includes an LCD, emergency push button, speaker, microphone, multi-
function accessory connector, three programmable function keys, 16-position channel select rotary knob,
on/off/volume rotary knob, 3-position programmable toggle switch, antenna connector, dc power connector, and two
LED status indicators. The Guardian features adjustable power output ranging from 25W to 110W. Operational
modes include:
• Clear analog voice FM, 12.5 and 25 kHz
• DES CVSD modulation voice, 25 kHz, 12 kbps
• Project 25 clear digital voice, 12.5 kHz
• DTMF overdial
5.1.2 Antenna
The antenna is a SO239 (UHF) jack mounted to the rear panel.
5.1.3 Guardian PC Programmer
Note: For some programming features, refer to the Interface board section in Chapter 2.
The Guardian programming kit is compatible with Windows 95/98/NT, capable of loading or modifying
programming information into the radio from a PC. It includes software, a detailed operator manual, and an RS232
compatible programming/cloning cable. The cable connects the PC serial port to the accessory connector on the rear
panel of the radio. See the Guardian programming manual for a complete description of PC programming. The PC
programmer is capable of programming the following settings:
Bank tag
Special channels: Priority channels 1 and 2, emergency channel, and home channel
BANK
Zones/available zones
Zone tag
Scan list
ZONE
Channels/available channels
Channel tag
Channel type
Bandwidth
Receive only option
Options: Scan list, talkaround, and locked
Encryption: Enable, and key
CHANNEL
Transmit Power: High and low RF power levels