TABLE1 Four-Wire Switch Impedances # freq ZC.r ZC.i ZSO.r ZSO.i 1 200 1280 -293 1057 -220 2 250 1237 -349 1022 -259 3 315 1174 -411 973 -300 4 400 1087 -469 909 -335 5 500 987 -510 839 -358 6 630 869 -531 762 -368 7 800 744 -524 683 -363 8 1000 637 -494 616 -348 9 1250 547 -447 556 -325 10 1600 469 -387 500 -297 11 2000 419 -333 458 -270 12 2500 383 -284 423 -243 13 3150 357 -241 393 -218 14 4000 338 -206 369 -196
This page used some of the functions for ABCD parameters and the HTML CANVAS to plot thr calculations
ABCD Matrix: Vin = A B Vout Iin C D Iout A = Vin/Vout loss = Math.log10( A ) * 20 dB * resonant F = 1/2*pi*sqrt(L*C) LC = 1/(2*pi*F)^2 25E-3,1E-6,500 for 1000Hz
L,C,R: e.g: "10E-3,1E-6,1000"