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Projects under way
April 2012 Mt Duncan VK7RMD battery replacement - The old batteries have reached the end of their life and will be replaced. The new batteries have been obtained , new battery box constructed and the removal cradle consttructed. All are ready to flown to the top of the mountasin by helicoptor and the old gear removed. Mt Montgomery VK7RMM - DATV and APRS - Mt Montgomery site has now bee licenced The APRS digi has been trialled and proven succesful. The construction of the Digital ATV repeater will be commenced soon once parts are ordered and received. The ATV repeater will be 1250mhz FM-TV Receive and 446.5 mhz standard definition digital TV Transmit. Antennas need to constructed, so if you think you can henp then contact DAVID VK7DC. . Table Cape VK7RAC - 2M and 6M repeaters new installation - .Work has begun on installing the new repeaters. Licence has been modified to include the new frequencies and the new triband antenna has been installed at the top of the tower. Plan is to use the new antenna for the existing 70cm repeater and the new 2m repeater. The 6m repeater receiver will be connected to the antenna also, with the 6m transmitter connected to a separate antenna lower down the tower. |
| Welcome to the first of our
club contstuction 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. |
