... 2 Featuresl SW_TC880 combines the conventional TDR method and Bridge Method for fault detecting, faults like open ... the waveforms, establish database for the waveforms, and print if necessary.l Friendly Human-Machine Interface(HMI ... FUNC, RANG, VOP, ZOOM, FIND, FILE, LINE, press RANG as Fig. 1.3 shows, then the right ... will display 250M, 500M, 1KM, 2KM, 4KM and 8KM. Press 500M as Fig. 1.4 shows, then the ...