IFR COM-120C User Manual

3-12
SECTION 3
COMPOSITE
3-3-7 RF GENERATE SCREEN
The RF Generate Operation Screen defines and activates the COM-120C RF Generator
and is accessed by pressing the GEN Test Mode Key.
The RF Generate Operation Screen displays in the configuration last used.
1. Header Bar
Displays current operation
mode.
2. RF Field
Displays current RF Generate
Frequency from 0.0000 to
1000.0000 MHz.
Set Reference and Sweep
Functions are not active
simultaneously.
3. FL (Frequency List) Setting
Displays selected Frequency
List number (FL-00 to FL-99)
when active. Blank if
inactive. RF Field (2)
echoes frequency of selected Frequency List setting. Editing RF Field (2)
deactivates Frequency List Function.
4. Frequency List Label
Displays optional Frequency List Label. Blank if Frequency List Label is not used.
5. Output Level
Displays Output Level in selected units. If T/R Connector is selected for Output
(6), range is -130 to -20 dBm, 0.07 to 22360.6 µV, 0.0000 to 22.3606 mV and
0.000000 to 0.022360 V. If AUX RF Connector is selected for Output (6), range is
-130 to -13 dBm, 0.07 to 50059.3 µV, 0.0000 to 50.0593 mV and 0.000000 to
0.050059 V.
6. Output
Displays connector selected for output. Displays T/R, T/R Gate, AUX or AUX
Gate. If Gate Output is selected, output is active only when microphone attached
to MIC/ACC Connector is keyed. Default output connector is T/R Connector.
GENERATE
0060716
7
RF:
FL:
Level:
Output:
GEN1
Mod Src:
Deviation:
Format:
Freq:
TONE
GEN1
T/R
-130.0 dBm
OFF
500.0000 MHz
0
AF LEVEL SINAD Audio/Data Filters
0.00 Vrms
0.05 055
- - - dB
1000.0 Hz
5.00 kHz
1 ms/div
SCOPE
1 kHz
SOURCE: Int Mod
FM
BP:
HP:
LINE:
Shape: Sine
LP: OFF
AF DEC
10
4
5
6
3
2
7
8
9
11
12
16
17
1
OFF
OFF
13
14
15
RF Generate Screen

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.