LBI-38836
8
INTRODUCTION
The Dual Format PCS Personal radio is a rugged,
lightweight unit which is housed in a molded Lexan Front
assembly and an Aluminum Rear casting. The new PCS
radio provides reliable service in the 800 MHz band and
contains new DUAL FORMAT technology that enables the
radio to operate within a GE-MARC trunked system and an
EDACS
®
trunked system. There are two models available,
the 3-button SCAN model and the system model (which
contains a DTMF keypad and supports DTMF operation).
The radio normally transmit in the 806-825 MHz band
and receives from 851-870 MHz. The radio is able to
transmit from 851-870 MHz for Talk-Around in the GE-
MARC system.
The Dual Format PCS radio is offered with several
packages available with respect to the number of
systems/groups programmed and the EDACS feature set
allowed. The radio is also capable of Conventional
operation. See the section on page 6 for a complete
description of the Packages available.
The radio is programmed using a Personal Computer
and an Interface Box connected to the UDC connector on
the side of the radio. This allows the radio to be tailored to
meet the requirements of the individual user and of the
System(s) it is operating within.
DESCRIPTION
The radio is made up of the front assembly, the rear
assembly and the control frame assembly. The RF Board is
housed in the Rear Assembly and contains all transmit,
receive and synthesizer circuits. The Oscillator stability and
Receiver selectivity meets NPSPAC specifications. The
Audio Logic Board is housed in the Front assembly and
contains all transmit audio and receive audio circuits along
with all logic and control circuits. The Control Frame
assembly mounts in the radio front cover and provides the
following functions:
•
Audio Logic board interface
•
Microphone and speaker connections
•
Houses the Select buttons for selecting Systems/
Groups, the Volume up/down buttons, the
SHFT/CLR button and the PTT button
•
UDC interface to the outside of the radio for
external options and customer programming
•
Liquid Crystal Display
FEATURES
STANDARD RADIO FEATURES
Carrier Control Timer (CCT)
The CCT is programmable on a per channel basis and
prevents unnecessary channel traffic and radio damage if the
transmit timer is exceeded. If the programmed timer times
out during a transmission the radio will beep and stop
transmitting. The beeping tone will continue until the
operator released the PTT Button.
Audio Alert Beeps
The PCS radio generates a number of alert tones to
indicate various events.
Low Battery Alert
When the battery is low and needs to be recharged, the
BT icon will be displayed and a low pitch tone will sound
every 130 seconds.
Power Up Self Test
Each time the radio is turned on it will perform a
power-up self test. After successful completion of the test,
an optional tone will sound and the current System and
Group/Channel will be displayed. If the unit does not pass
the self test an error message will be displayed.
CONVENTIONAL MODE FEATURES
Channel Guard
Channel Guard provides a means of restricting calls to
specific radios through the use of a Continuous Tone Coded
Squelch System (CTCSS), or a multi-code Digital Squelch
System (DCG). Tone frequencies range from 67 Hz to 210.7
Hz. There are 83 standard programmable digital codes.
Manual DTMF Operation
Telephone interconnect calls can be made using the 12-
button keypad. This keypad is enabled when a DTMF
programmed channel is selected and PTT Button is pressed.
