====== Cobweb ======

20-10m, small and omni directional, folded dipoles.

Parts to build one:

  * [[https://aerial-parts.co.uk/epages/626ba059-121d-45c5-8692-ea58514eb29c.sf/en_GB/?ObjectPath=/Shops/626ba059-121d-45c5-8692-ea58514eb29c/Products/APP0052|Metal hardware]]
  * [[https://www.hamgoodies.co.uk/cobwebb-balun-box|Balun premade]]
  * [[https://carbonfibreprofiles.com/products/3m-grp-tubes?variant=40367699263524|Fiberglass Tubes]]


[[https://www.m0pzt.com/cobweb-aerial/|Instructions]], highlights:

Parts required :

    Aluminium Plate : 200x100mm *
    Aluminium Plate : 150x100mm *
    3x 1″ 16swg Aluminium Tube, 1m length *
    You can use fibreglass throughout, if the wall-thickness is sufficient
    2x 20mm PVC Conduit, 3m length – fine for prototype, but fibreglass is better!
    8x 1″ Stauff Element Claps *
    2x V-bolts *
    1.6mm (or whatever you have) Wire – total usage is about 38m.
    2x FT140-61 (or FT240-61 for QRO) Ferrite toroids – from Ham Goodies
    4x 600mm of RG316 Coax (Ham Goodies), or, for 100w MAX: RG174 will be fine
    1x Waterproof Enclosure (min size: 120x85x55mm)
    Selection of nuts/bolts – ensure they are stainless-steel!

* items are in the metal hardware pack

[[https://cpc.farnell.com/concordia-technologies/ew24-0-2blk100m/equipment-wire-24-0-20mm-black/dp/CB19907|Some wire]] or sotabeams.