IFR COM-120C User Manual

1-11
SECTION 1
INTRODUCTION
1-10 COM-120C PRODUCT SPECIFICATIONS
A warm-up time of 5 minutes is required for the following performance requirements.
RF measurements are referenced to 50
Ω .
Accuracy and Resolution stated in percent are referenced to measured or selected value
unless otherwise stated.
Where resolution exceeds accuracy, resolution takes precedence.
Specifications and features are subject to change without notice.
RF SIGNAL GENERATOR
Frequency
Range:
Resolution:
Accuracy:
250 kHz to 1 GHz
100 Hz
Same as Master Oscillator.
Output (T/R and AUX RF Connectors)
Range (T/R):
Range (AUX):
Resolution:
Accuracy:
VSWR:
-130 to -20 dBm (Simplex Mode)
-130 to -40 dBm (Duplex Mode)
-130 to +13 dBm
0.1 dB
± 2 dB (>-90.1 dBm, < 400 MHz)
± 2.5 dB otherwise
<1.15:1 (0.25 to ≤ 100 MHz)
<1.23:1 (100 to ≤ 400 MHz)
<1.38:1 (400 MHz to 1 GHz)
Spectral Purity
Residual FM:
Residual AM:
Harmonics:
Non Harmonics:
<20 Hz RMS (0.3 to 3 kHz BW)
<0.5% RMS (0.3 to 3 kHz BW)
<-26 dBc
<-45 dBc (below 1 GHz)
<-40 dBc (above 1 GHz)
Input Protection
(T/R): 50 W CW continuous
100 W CW (90 sec to 3 min)
150 W CW (30 sec to 3 min)
200 W CW (15 sec to 3 min)

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.