O-Line V1 100 0 0 PULSE 0 1 0 1n 1n 20n RV1 100 1 11ohm R1 1 near1 56 O1 near1 0 far1 0 lline R2 far1 0 68 V2 200 0 0 PULSE 0 1 0 1n 1n 20n RV2 200 2 11ohm R3 2 near2 56 O2 near2 0 far2 0 lline V3 300 0 0 PULSE 0 1 0 1n 1n 20n RV3 300 3 11ohm R4 3 near3 1m O3 near3 0 far3 0 lline R5 far3 0 68 V4 400 0 0 PULSE 0 1 0 1n 1n 20n RV4 400 4 11ohm R7 4 near4 1m O4 near4 0 far4 0 lline .model lline ltra r=4.5 l=480n g=0 c=105p len=0.3 *+ rel=1 nosteplimit compactrel=1.0e-3 compactabs=1.0e-14 .TRAN 10p 100n 0 10p *#run *#PLOT V(1) V(near1) V(far1) yl -0.5 1.5 title ZI=Z0=ZL *#PLOT V(2) V(near2) V(far2) yl -0.5 1.5 title ZI=Z0_ZL=open *#PLOT V(3) V(near3) V(far3) yl -0.5 1.5 title ZI=0_Z0=ZL *#PLOT V(4) V(near4) V(far4) title ZI=0_ZL=open .END