MFJ-209 SWR Analyzer Instruction Manual
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MFJ-209 HF/VHF SWR Analyzer
TABLE OF CONTENTS
Table of Contents......................................................................................................1
Introduction..............................................................................................................2
Powering The MFJ-209 ............................................................................................3
Battery Installation....................................................................................................3
Operation Of The MFJ-209.......................................................................................4
SWR and the MFJ-209..................................................................................4
Measuring SWR............................................................................................5
Adjusting Simple Antennas .......................................................................................6
Dipoles..........................................................................................................6
Verticals........................................................................................................6
Tuning an Antenna ........................................................................................6
Measuring the Feedpoint Resistance of Antennas...........................................7
Testing and Tuning Stubs and Transmission Lines.....................................................7
Velocity Factor of Transmission Lines...........................................................8
Impedance of Transmission Lines ..................................................................9
Estimating transmission line loss....................................................................9
Adjusting Tuners.......................................................................................................10
Adjusting Amplifier Matching Networks ...................................................................10
Testing RF Transformers ..........................................................................................11
Testing Baluns...............................................................................................11
Measuring Inductance and Capacitance.....................................................................12
Measure capacitance......................................................................................12
Measure inductance.......................................................................................12
Resonant Frequency of tuned circuits........................................................................13
Testing RF Chokes........................................................................................14
"Zero Beating" the MFJ-209.....................................................................................14
Using the MFJ-209 as a Signal Source ......................................................................15
Technical Assistance.................................................................................................15
MFJ-209 Parts List ...................................................................................................15
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