WebbOn each EZNEC model I noted the antenna terminal's impedance at each band frequency. I then plugged each frequency and corresponding impedance value from EZNEC into the TLD program (see Figure-1). The final step in each case was to select the desired transmission line type and length. WebbIch habe nun Deine Doppel-Zepp (allerdings mit bei John, KN5L vorhandenen CQ-553 Daten und dessen SimSmith Modell für „simplified“ Kabel in SimSmith verwendet. Außerdem hat er (mit EZNEC) statt 9,37 –j 1420 Ohm gefunden: 9,73 –j1450. Beides ist fast egal, außer, dass damit nicht SWR = 10,26 heraus kommt, sondern SWR = 18,12.
SimSmith
Webb11 juni 2024 · SimSmith and EZNEC integrate fairly well. I am not familiar with that particular antenna and, of course, the ‘monopole’ must have something against which to … Webb16 juni 2024 · The .s1p file is loaded into the load Z in SimSmith, try it out yourself and you should get the chart below. SimSmith Smith Chart of Impedance (ZL) at 18.090 MHz for EFHW & 6' RG316 (at red arrow) To transform this impedance to 50 Ohms we will use a LC network with a shunt capacitor across ZL and a series inductor to Z0. rd real talk
SimSmith: A New Program for the Venerable Smith Chart
WebbRead data from most low cost VNA's (vector network analyzers) as S1P (complex impedance) files and import into SimSmith. Or simulate an antenna in EZNEC, run SWR plot which generates a “lastZ” file which is an S1P file useable in SimSmith. Ability to analyze circuits from simple to complex WebbSimSmith will allow you to model the antenna and feed line separately, which I will do below in order to illustrate a point about feed line length and its impact on impedance … WebbEZNEC Antenna analysis NEC-2 based antenna analysis software for the amateur and professional; HamCalc v1.3 HamCalc is a free collection of calculators for radio amateurs include Antenna ERP calculations,Attenuators, Audio Filter design, Coil Winding,Decibels, ... how to speed up pc gaming performance