IFR COM-120C User Manual

B-1
APPENDIX B - ABBREVIATIONS
A
A Ampere
ac Alternating Current
AF Audio Frequency
A Freq Audio Frequency
AGC Automatic Gain Control
AM Amplitude Modulation
amp Ampere
ANLZ Analyzer
ANSI American National Standards
Institute
ANT Antenna
AR Autorange
ASCII American National Standard
Code for Information Inter-
change
Atten Attenuation
Auto Automatic
AUX Auxiliary
B
BFO Beat Frequency Oscillator
BER Bit Error Rate
bps Bits per second
C
Cbl Flt Cable Fault
CCH Control Channel
ccw Counterclockwise
Cont Continued
CW Continuous Wave
C Wt C-Weight
D
DAC Digital to Analog Converter
DCS Digital Coded Squelch
dB Decibels
dBm Decibels relative to 1 milli-
watt
dc Direct Current
DCS Digital Coded Squelch
Codes
Demod Audio Demodulated Audio
Dev Deviation
Disp Display
Dist Distortion
div Division(s)
DMM Digital Multimeter
DPL Duplex
DPLX Duplex
DTMF Dual Tone Multi-Frequency
Dup Duplex
E
ERR Error
ESC Escape
ESD Electrostatic discharge
E-TACS Enhanced Total Access
Communications System
EXT MOD External

IFR COM-120C Specifications

General

Resolution	1 Hz
RF Input Impedance	50 Ω
Third Order Intercept (TOI)	+10 dBm
Display Type	LCD
Display Resolution	640 x 480 pixels
RF Input Protection	1 W
Power Requirements	100-240 VAC, 50-60 Hz
Input VSWR	1.5:1
Phase Noise	-80 dBc/Hz @ 10 kHz offset

Summary

COM-120C Communications Service Monitor Operation Manual

Preface

Provides an overview of the manual's organization, scope, and intended audience.

Section 1: Introduction

Introduces the COM-120C, its functions, and basic operation modes.

Section 2: Installation

Provides information on preparing the COM-120C for use and operating precautions.

Section 3: Composite Controls

Details front and rear panel controls, screens, soft function keys, and menus for system interaction.

Section 4: Operation Procedures

Covers configuring and performing various operational tests like RF Generate, Receive, and Duplex modes.

Section 5: Common Practices

Offers suggestions for equipment and screen setups for common RF Generate and Receive practices.

Section 6: Options and Features

Describes optional features and accessories for the COM-120C, including testing capabilities.

Safety and Precautions

General Safety Warnings

Covers high voltage equipment hazards, servicing, case removal, and safety identification terms.

Battery Handling and ESD Precautions

Provides warnings for sealed lead-acid battery use and precautions for handling ESD-sensitive parts.

Appendix A: User I/O Connectors and Pin-Outs

Table of I/O Connectors

Details the connector names, types, signal direction, and signal types for COM-120C I/O ports.

Connector Pin-Out Tables

Provides specific pin assignments for MIC/ACC, GPIB, and RS-232 connectors.

Appendix B - Abbreviations

Soft Function Key Descriptions

An alphabetical reference for COM-120C soft function keys and their descriptions.

Appendix C - Repacking for Shipping

Shipping and Repacking Procedures

Details authorization, tagging, container requirements, freight costs, and step-by-step repacking instructions.

Index

Index-1

Alphabetical listing of topics and their corresponding page numbers for easy reference.