Antenna support

[Wicker Monkey]

I want to put up a multiband trap dipole. I have a mounting point on the roof of my house which is about 10 or 11 metres high. I'd like to put up an antenna support mast at the other end of the garden, then suspend the dipole between the house and the mast. If I wanted to anchor the mast into the ground what to I need to do to anchor a 10 or 11 metre mast? I'm not going to support a 9 element HF yagi from the mast, just the other end of the dipole, and maybe in the future a vertical

I'm guessing I need to dig something like a deep fence post hole, then put in the mast support, then fill it with concrete.

Questions:

1) What should I use for the support, a steel pipe? How thick? What diameter for a 10 to 11 metre mast support?

2) What should I use for the mast itself given that it will be 10 to 11 metres high? What kind of pipe or tube, and how thick?

3) How to I anchor the mast to the support? Bolts?

4) Prefer not to have to bother with guy wires etc.

5) I live in sub-tropical Queensland Australia, where cyclones are possible though I don't think there's been one recently... This might affect the requirements.

 

[ghutch]

Years ago I used an old discarded light standard like you see along the roadways. Found it in a scrap metal yard! Worked great, had 4-6 Bolts around the base to bolt it down. I poured a cement pad about 2x2 and dug a pier or post hole 10-12 in diameter down about 4 feet added some reinforcing rods down into the hole and the bolts welded to the rods. Worked very well but was a pain to get to the top of it it was only about 25-30 feet today I would want a way to tilt it down. I can still fall with the best but don't bounce as well now days??