RF_MAGNETOMETER

Published:2009/6/28 22:50:00 Author:May | From:SeekIC

Measu res RF radiation and current distribution for antennas, transmission lines, ground leads, building wiring, and shields. Can also be used as sensitive portable field-strength meter. Will indicate orientation of field. High-Q circuit is tunable from 1.8 to 150 MHz for indicating frequency of fields produced by RF harmonic, Applications inplude detecting reradiation from rain gutters, metal fencing, towers, and guy wires that are distorting antenna field pattems, and detecting radiation from ground leads, appliance power cords, and hidden building wiring. When used as probe, will accurately pinpoint leakage of RF energy from joints, holes, or slots in shielded enclosures. Operation is similar to absorption-type wavemeter, except that pickup coil is electrostatically shielded by slotted aluminum IF trans-former can to eliminate capacitive coupling. Inductor is wound on ferrite coil to give very high a as pickup element.-W. M. Scherer, An R. F.Magnetometer and Field Strength Meter, CQ, April 1971, p 16-20.



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