MFJ MFJ-269 User Manual

MFJ-269 Instruction Manual HF/VHF/UHF SWR Analyzer
MFJ-269 SWR HF/VHF ANALYZER
TABLE OF CONTENTS
Warning: READ SECTION 2.0 BEFORE ATTEMPTING TO USE THIS PRODUCT!
INTRODUCTION 1.0 DESCRIPTION
MFJ-269 SWR HF/VHF ANALYZER
TABLE OF CONTENTS
Warning: READ SECTION 2.0 BEFORE ATTEMPING TO USE THIS PRODUCT
1.0 INTRODUCTION DESCRIPTION
1.1 Typical Uses............................................................................. ….2
1.2 Frequency Range.............................................................................3
1.3 A Quick Word About Accuracy.......................................................3.
2.0 POWER SOURCES ................................................................………………………..
4
2.1 External Power Supply......................................................................4
2.2 Using Internal Batteries…………………………………….…………5
2.2 Using Rechargeable AA Type Batteries………………………………5
2.4 Using conventional AADrycell Batteries.............................................6.
2.5 Blinking “VOLTAGE LOW” display warning………………………..10
2.6 “Power Saving Mode” (Sleep mode)....................................................6
3.0 MAIN MENU AND DISPLAY ………..
................................…………………………7
3.1 General Connection Guidelines............................................................7
3.2 Power-up Display...............................................................................7.
3.3 Main Mode Descriptions (HF functions Only)......................................8
3.4 UHF Operation………………………………………………………..
4.0 MAIN (or Opening) MODE
………………………….……...............................................10.
4.1 General Connection Guidelines.............................................................10
4.2 HF/VHF Main modes
4.2.1 Antenna sustem SWR............................................11
4.2.2 Coax Loss....................................................13
4.2.3 Capacitance..................................................14
4.2.4 Inductance....................................................15
4.2.5 Frequency Counter.......................................15
4.3 UHF Main modes
4.3.1 Antenna sustem SWR (UHF)...................................
4.3.2 Coax Loss (UHF)................................................
5.0 ADVANCED OPERATION)...........................................……………………………........
16
5.1 Forward.................................................................................................16
5.2 Accesing Advanced modes …………....................................................17
5.3 General Connection Guidelines.............................................................17
5.4 Advanced 1………………………………………………………………18
5.4.1 HF/VHF Advanced 1
5.4.1.1 Magnitude and Phase of Load Impedance………..18
5.4.1.2 Series Equivalent Impedance …………………….19
5.4.1.3 Paralell Equivalent Impedance……………………19

MFJ MFJ-269 Specifications

General

Brand	MFJ
Model	MFJ-269
Category	Measuring Instruments
Language	English

Summary

Power Sources and Battery Management

External Power Supply

Information on using external DC power supplies, voltage requirements, and connections.

Internal Battery Operation

Guidance on using internal batteries, including installation and charging of rechargeable types.

Main Menu and Display Functions

Main Mode Descriptions (HF)

Explains the five primary measurement modes for HF operation.

UHF Operation Mode

Instructions for setting up and operating the analyzer in the UHF frequency range.

Main and Opening Mode Operations

General Connection Guidelines

HF/VHF Main Measurement Modes

Details on measuring SWR, Coax Loss, Capacitance, Inductance, and using the Frequency Counter.

UHF Main Measurement Modes

Describes SWR and Coax Loss measurements specific to the UHF frequency band.

Advanced Operation Modes

Advanced 1: Impedance and SWR Functions

Covers impedance magnitude, phase, series/parallel equivalents, return loss, resonance, match efficiency.

Advanced 2: Fault and Length Measurements

Enables distance to fault measurement, electrical length, and wavelength calculations.

Advanced 3: Custom Impedance and Loss

Allows custom SWR reference impedance and measurement of non-50 ohm systems.