General Dynamics R2670 Series User Manual

Section 5
TRUNKING INTRODUCTION
5-1 INTRODUCTION
The General Dynamics R2670 Digital Communi-
cations System Analyzer tests the unique
requirements of radios supporting Motorola
trunked radio protocols. All R2600 Series
capabilities are retained with the trunked test
sequences accessed via the LCD display, numeric
keypad, screen-defined softkeys, cursor movement
keys, and the optical tuning knob. The trunking
option functions also may be accessed through the
remote control interface port.
The trunking option simulates the functions of a
central controller of a trunked radio system by
providing control channel and voice channel
signaling protocols. Testing with the trunked radio
option provides dynamic call processing and
direction to a voice channel. Once on the voice
channel, the general purpose RF test capabilities of
the analyzer can be used to measure the radio per-
formance. Trunk option testing provides proof of
basic inbound and outbound signaling and displays
specification compliance data.
Throughout this manual, the "system" refers to the
fixed-end central controller. Thus, a system
initiated call is the analyzer simulating the central
controller calling the radio under test.
5-2 CAPABILITIES
Trunking option capabilities are as follows:
Dynamic Call Processing
Test trunked m
obile and portable radios
under actual signaling conditions by
simulating the function of the central con-
troller. The trunking analyzer provides sepa-
rate screens for inbound (radio initiated) and
outbound (system initiated) calling modes.
Closed Cover Measurements
The analyzer measures and displays trans-
mitter power, frequency error, and frequency
deviation while in the dynamic calling mode.
While the radio is on the voice channel, the
operator can make additional measurements
using other functions of the analyzer.
Radio ID Decoding
The ISW data received from the radio is de-
coded and displayed on the analyzer. The fol-
lowing defines the data that is decoded and
displayed.
TRUNK I AND TRUNK I EP II TRUNK II
Fleet
Subfleet Talkgroup
Unit Unit
Call Type Call Type
Manual Mode
The trunking analyzer supports a mode where
the operator can exit from the trunking
screens and access standard displays of the
analyzer while the test sequence is in
progress.
83

General Dynamics R2670 Series Specifications

General

Brand	General Dynamics
Model	R2670 Series
Category	Measuring Instruments
Language	English