Sir. Among other careers I once installed cable. If you take a standard 9 volt battery, 6 inches of cable , one male connector, and 1 double female connector , you can make your own "line finder". Simply put on the male connector, and strip back enough of the other end of the cable and attach the center lead to the battery + and twist the braid and connect to the battery--
Connect to your cable inlet and simply check your cable outlets for 9 volts
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