IFR COM-120C User Manual

3-9
SECTION 3
COMPOSITE
3-3 SCREENS, SOFT FUNCTION KEYS AND MENUS
The following comments apply to all Operation Screens within the COM-120C. Reading
and understanding these notes is the responsibility of the operator.
Due to the level of detail required to fully describe all facets of the COM-120C, only
surface information is provided to help educate the operator.
3-3-1 SOFT FUNCTION KEYS
Soft Function Keys are alphabetically defined in Appendix D.
3-3-2 CURSOR MOVEMENT
A cursor, in the shape of a box, is used to identify what is currently editable. There are
two methods to move the Cursor around the active screen.
Use DATA SCROLL Keys as long as the current Cursor location is not being edited.
Or use TAB Function as follows:
o Press TAB Key.
o Enter value in desired screen location using DATA ENTRY Key(s).
o Press ENTER Key to complete the operation.
3-3-3 EDITING FIELDS USING DATA SCROLL KEYS AND SPINNER
All fields can be edited using DATA SCROLL Keys and/or DATA SCROLL Spinner.
Editing Numeric Data Fields is a special case and is covered in para 4-1-3. Edit the
remainder of the fields using DATA SCROLL Keys and/or DATA SCROLL Spinner as
follows:
o Position cursor on field selected for edit using DATA SCROLL Keys or TAB
Function.
o Press ENTER Key to highlight field.
o Press DATA SCROLL Key (
↑) to move up through search field and DATA SCROLL
Key (↓) to move down through search field. Alternate method is to use DATA
SCROLL Spinner. Turning DATA SCROLL Spinner clockwise performs same
operation as pressing DATA SCROLL Key (↑).
o Press ENTER Key to complete operation.

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.