MFJ-259D Instruction Manual HF/VHF SWR Analyzer
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TABLE OF CONTENTS
1.0 INTRODUCTION......................................................................................................................................... 1
1.1 A Quick Word about Accuracy ................................................................................................ 1
1.2 Typical Uses............................................................................................................................. 2
1.3 Frequency Range...................................................................................................................... 2
2.0 POWER SOURCES ...................................................................................................................................... 2
2.1 External Power Supply............................................................................................................. 3
2.2 Using Internal Batteries............................................................................................................ 3
2.3 Using Rechargeable “AA” Type Batteries ............................................................................... 3
2.4 Using Conventional “AA” Drycell Batteries............................................................................ 4
2.5 “Power Saving” Mode (sleep mode) ........................................................................................ 4
3.0 MAIN MENU AND DISPLAY .................................................................................................................... 4
3.1 General Connection Guidelines................................................................................................ 4
3.2 Power-up Display..................................................................................................................... 5
3.3 Main MODE descriptions ........................................................................................................ 5
3.4 Blinking “VOLTAGE LOW” display warning ........................................................................ 6
4.0 MAIN (OR OPENING) MODE .................................................................................................................... 6
4.1 General Connection Guidelines................................................................................................ 7
4.2 Antenna SWR........................................................................................................................... 7
4.3 Coax Loss................................................................................................................................. 9
4.4 Capacitance .............................................................................................................................. 9
4.5 Inductance ................................................................................................................................ 10
5.0 ADVANCED OPERATION ......................................................................................................................... 11
5.1 Forward .................................................................................................................................... 11
5.2 General Connection Guidelines................................................................................................ 12
5.3 (Magnitude of) Impedance mode ............................................................................................. 12
5.4 Return Loss and Reflection Coefficient mode.......................................................................... 12
5.5 Distance to Fault mode............................................................................................................. 13
5.6 Resonance Mode ...................................................................................................................... 13
5.7 Percentage Transmitted Power................................................................................................. 14
6.0 ADJUSTING SIMPLE ANTENNAS............................................................................................................ 14
6.1 Dipoles ..................................................................................................................................... 14
6.2 Verticals ................................................................................................................................... 15
6.3 Tuning a simple antenna........................................................................................................... 15
7.0 TESTING AND TUNING STUBS AND TRANSMISSION LINES ........................................................... 15
7.1 Testing Stubs............................................................................................................................ 15
7.2 Velocity Factor of Transmission Lines .................................................................................... 16
7.3 Impedance of Transmission Lines or Beverage antennas......................................................... 17
7.4 Adjusting Tuners...................................................................................................................... 18
7.5 Adjusting Amplifier Matching Networks................................................................................. 18
7.6 Testing RF Transformers ......................................................................................................... 19
7.7 Testing Baluns.......................................................................................................................... 19
7.8 Testing RF Chokes................................................................................................................... 19
8.0 TECHNICAL ASSISTANCE........................................................................................................................ 20
FULL 12-MONTH WARRANTY ....................................................................................................................... 21
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