MFJ -5124Y Bedienerhandbuch

TABLE OF CONTENTS Introduction... 1 Po

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 9 Coaxial lines can lay in a pile or coil on the floor, two wire lines must be suspended in a straight

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 10 Free space 1/ 4 wavelength =Low SWR frequencyVelocity Factor =Actual feedline lengthFree space 1/ 4

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 11 3.0 : 1 3.0 dB 2.5 : 1 3.6 dB 2.0 : 1 4.7 dB 1.7 : 1 5.8 dB 1.5 : 1 6.9 dB 1.2 : 1 10.3 dB Y

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 12 ADJUSTING AMPLIFIER MATCHING NETWORKS The MFJ-259 can be used to test and adjust RF amplifiers or

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 13 A properly designed current balun, the type that is the most effective and usually handles the most

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 14 C(pF) =100003948F LF = MHz L = H2.µ Measure inductance 1. Connect an unknown inductor with the h

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 15 For high inductance values a series LC circuit should be used to measure resonant frequency. The i

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 16 TECHNICAL ASSISTANCE If you have any problem with this unit first check the appropriate section of

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 17 Designator Description Part Number J5 Jack, 2.1 mm, DC Coaxial Jack 601-6021 J6 Connector, BN

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 1 MFJ-259 HF/VHF SWR ANALYZER INTRODUCTION The MFJ-259 SWR Analyzer is an easy to operate, versatile

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 2 POWERING THE MFJ-259 The MFJ-259 requires between 8 and 18 volts for proper operation. Any power s

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 3 OPERATION OF THE MFJ-259 After the MFJ-259 is connected to a proper power source the red on-off but

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 4 Feedlines with very low losses, such as air insulated transmission lines, will not have much loss ev

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 5 Resistance Meter The resistance meter section of the MFJ-259 will provide resistance readings for th

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 6 severely damaged. A coupling loop is useful for directing RF at a reduced level into the counter.

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 7 ADJUSTING SIMPLE ANTENNAS Most antennas are adjusted by varying the length of the elements. Most h

MFJ-259 Instruction Manual HF/VHF SWR Analyzer 8 Measuring the Feedpoint Resistance of Antennas The approximate feedpoint resistance of a low impedan