A timber antenna mastBackTimber mast suitable for supporting lightweight wire antennas. The mast is 6 metres tall plus a 2 metre top extension. It tilts over for easy work on antennas. The antenna supports dipoles for 40, 20 and 10 metres, coming off the one feedpoint. 15 metre operation is provided by the 40m dipole. 80 metres is covered by adding loading coils to the 40 metre dipole. The antenna is similar to VK5AH's dipole except there is a dipole for 10 metres instead of 15 metres. VK5AH: http://users.picknowl.com.au/~wavetel/antennas.htm#6m-10m Being timber the mast is suitable as the centre support for open wire-fed dipoles such as the G5RV. Though it has the disadvantage of requiring an antenna coupler, the single G5RV wire is lighter and cleaner looking as one wire replaces three while covering more bands. Since the video was taken the mast has been extended to 9 metres, with a 38mm timber dowel u-bolted to the top portion. To lower wind resistance and make the higher mast less obtrusive at the top the chopping board pictured has been replaced with a much slimmer PVC T-piece. Category: Howto Uploaded: December 7th, 2008 @ 1:27 am Author: vk3ye Length: 02:16 Rating: Views: Tags: antenna mast tower homebrew amateur ham radio shortwave timber tilt-over Related Video Links:» View Video Comments For A timber antenna mast » View vk3ye's Other Uploaded Videos Video Thumbnails:Video Embedding Code:* Embed this video on your website, social bookmark, myspace, or blog. |
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