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Welcome to the first of our
club projects - An end fed 1/2 wave
dipole for 2M
This is scheduled for the may 2010 meeting. |
At the meeting I will help people construct and tune their own antenna with mine on display as a guide. All you need are the materials as follows- * 1.5m long, 10mm dia. fibreglass electric fence pole - available from Sargents rural supplies, Wellington st, South Burnie (west of Timberland workshops). Cost $5 * A short (1-3m long) RG58 coax with PL259 connector attached one end. A second piece of RG58, 100mm long (no connectors) for tuning stub. * Braid (maybe from old RG8, RG213 coax, etc) to fit over and cover the fibre glass rod for a distance of at least 1metre. I may be able to provide some braid. * I will supply 0.85mm enameled wire. * 16mm dia. heat shrink tubing 1.2m long. Jaycar have in catalogue http://www.jaycar.com.au/productView.asp?ID=WH5536&CATID=22&form=CAT&SUBCATID=808 at less than $4 and so should be available at Leading Edge, Burnie, etc. Will need someone to bring along a heat gun (or their hairdryer) for the heatshrink. At less than $10 total cost, this works out to be a cheap, sturdy, lightweight 2m ground independent vertical, ideal for home or portable use. I have already built the prototype and found it performing well, and has VSWR of less than 1.2/1 across 2 metre band.. To gauge interest in this project, please let me know if you intend to build one at the meeting. |
