[TowerTalk] TowerTalk antenna TOWER - Homebrew

[Wilson]

Hi Vikas,
Others will chime in, but I think 20m freestanding is more than you could 
likely get built/installed safely.
So please tell us the following:

Do you have a flat roof, or peaked?

Roof material?

What services are available locally, welding, woodwork?

What materials are available locally, steel, aluminum, wood?
Many towers have been built of wood, which is available nearly everywhere.

Do you plan to do the building, or hire it done?

A modest installation will be many times easier than an ambitious one.
With 3-5m, on a rooftop, a three element Yagi or two element quad will help 
you greatly, with reasonable effort and danger.
It's reasonable to use a short tower on the roof and let the mast go through 
the roof and be rotated by hand, if you have trouble finding a rotor.

Wilson
W4BOH