Antenna mast made from aluminium tube

Discussion in 'Antennas, Feedlines, Towers & Rotors' started by LA3AKA, Mar 3, 2013.

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  1. LA3AKA

    LA3AKA Ham Member QRZ Page

    I'm planning to make a crank up mast made from one 100x100x5x6000mm and one 80x80x5x6000mm square aluminium tube(6082 alloy), where the smaller tube will telescope inside the larger one. (My idea is something similar to the Tennamast 10.7m Standard mast )
    I'm not quite shure how strong the aluminium mast will be compared to a Steel mast of the same dimensions. The total height of the mast will be around 11m. My plan is to use this for a broadband Hexbeam antenna. would this setup need to be guyed or is it ok to use it as a free standing mast? Another option is to attach the mast to the house at around 4-5m height.
    Any ideas or comments will be appreciated.

    73 de LA3AKA, Johnny
  2. K5VWZ

    K5VWZ Ham Member QRZ Page

    Johnny, it sounds a bit lightweight. Steel would be stonger, 5mm is rather thick, so it could work with your guy wire idea using the aluminum...
    Free standing, no, attached at 4-5 meters up, good idea, plus your guy wires.

    good luck,
    73 de XE3 / KB5VWZ ex LA1BRA (stavanger)
  3. G0GQK

    G0GQK Ham Member QRZ Page

    Square aluminium tubing is not as rigid as round tube and it will wave about in any wind unless its guyed

    Mel G0GQK
  4. LA3AKA

    LA3AKA Ham Member QRZ Page

    May be I should consider 100x100x5mm square for the bottom section and 75x5mm roundtube for the top section, with bottom section attached to the house.

    73 de LA3AKA
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