MFJ-220B_Manual操作说明书手册

MFJ-220 SWR AnalyzerTable of ContentsIntroduction.......Powering The MFJ-220.Battery Installation.Operation Of The MFJ-220.3SWR and the MFJ-220Measuring SWR................4Customizing the Frequency Range..4Adjusting Simple Antennas.6Dipoles.6Quad Elements.…6Verticals.Tuning an Antenna….7Measuring the Feedpoint Resistance of Antennas.7Testing and Tuning Stubs and Transmission Lines......PVelocity Factor of Transmission Lines...............8Impedance of Transmission Lines................9Estimating Transmission Line Loss.10Adjusting Matching Networks.........10Adjusting Amplifier Networks.10Using the MFJ-220 as a Signal Source11Technical Assistance.........11Notes..12