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Curious about the KT VDV512-100 theory of operation. It maps tv coax cables, by plugging in a color coded plug on a coax cable and testing the end of other cables until the matching color LED illuminates, thereby identifying the 2 ends of the coax cable.
There are 4 colored plugs:
Blue 5.56K ohms between center pin and shell
Red 1.49K ohms
Green 14.93K ohms
Black 33.04K ohms
