Construction Project – Drive-on lightweight mast support

Inspiration for this project came from Craig WB3GCK, all credits to Craig 🙂

First, this device is not SOTA compliant, however the drive-on mast support is an excellent way to support a lightweight telescopic pole and a HF or VHF antenna for a Field Day, Parks or WICEN (EMCOM) deployment.

Position a car wheel on the board (the flange should be facing away from the car body), screw the 1 1/4 inch pipe into the flange and secure your lightweight telescopic pole to the galvanise pipe using two or three short tie down straps or a method you prefer.

Materials purchased from a local large-scale hardware store:

  • 7 ply marine timber 3/4 x 8 x 23 1/2 inches (19 x 200 x 600 mm)
  • 1 1/4 inch BSP 4 hole galvanised flange
  • 20 inch (500 mm) length of 1 1/4 inch threaded galvanised pipe
  • 4 x 8 mm x 40mm pan head galvanise bolts
  • 4 x 8 mm nuts and flat washers
  • 1 x 2.5 inch length of 1.5 inch dia heat shrink tube (60 mm x 40 mm dia)
  • Cabothane or water-proof paint
19 x 200 x 600 mm 7 ply timber, 1 1/4 inch flange and a 500 mm length of 1 1/4 inch gal pipe
top side – flange secured with 8 mm pan head bolts, 8 mm nuts and washers
underneath side
screw the 1 1/4 inch pipe into the flange – assembled
heat shrink applied to the top of the pipe to prevent cuts and snags
Three assembled, two for others in the VK1 amateur radio community

Next disassemble the pipe and flange and apply two coats of water-proof Cabothane or paint to the board.

Assemble when dry 🙂

5 thoughts on “Construction Project – Drive-on lightweight mast support

  1. The concept is in keeping with the philosophy of QRP – nice and simple. Love it. This is good also for deploying a lightweight yagi.
    Grant VK4JAZ

  2. Looks good, Andrew. I like the shrink wrap on the pipe threads. Great idea! 73, Craig WB3GCK

    • Thanks Craig, I hadn’t made a connection to using a flange mount until I saw your post. Brilliant and so simple, a credit to your imagination. Thanks for the inspiration. 73 Andrew VK1AD

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