Antenna cutting tape measure for Emergency Communications. Post#1368.

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Here's a simple device you can use to measure antenna elements for both home and portable use.  You can take this step a bit further by using a metal (usually steel) tape measure to make antenna elements.  Just cut the metal tape measure to the required length using the usual dipole antenna formula.  I've seen 2 m and 70 cm yagi beams made from metal tape measures.  They work well for RDF (radio direction finding) "fox hunts", as well as for portable or emergency antennas.  In most cases, your neighborhood building supply or electrical supply outlet can offer many items suitable for antenna use.  This video explains how a simple tape measure can make antenna design and construction a bit easier.

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Aloha es 73 de Russ (KH6JRM).


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