Labels:bulletin board | crt screen | monitor | reckoner OCR: (A) CONDUCTOR LENGTH 1/2 N" N CONNECTOR CONNECTOR GENERATOR LOAD TROUGH SCALE ON EDGE {B ADJUSTABLE DEPTH DETECTOR PROBE MOVABLE SLIDER Zo 138 LOG10 tout CONDUCTOR TROUGH C DIAMETER=d GENERATOR LOAD Zo:276 LOG 10 LENGTHS /2 OAD GENERATOR MAY BE BALUN UNBALANCED LINE Figure Transmission Lines for Measurement (A) Top view ofa slotted or trough transmission line, usually designed for a Zo of 50 ohms probe moves along the open top of the line to give the voltage variation along the line, which gives the SWR. The position of the voltage minimum gives the second measurement needed to calculate and ross section of a trough line. The probe end is usually smaller than the conductor diameter. Such lines can be built with inch extruded aluminum or can be sheet metal folded around for forming The equa ...
