Building a Yagi
Aluminium tubing is available in many sizes at quite reasonable prices from Muskita Aluminium, who have warehouses in Larnaca, Limassol Nicosia and Paphos. It comes in 6.3m lengths, you can cut the tubes in two for easier transport in your car, or if you need them complete they will deliver. U-bolts and Jubillee clips etc. can be bought at most hardware stores, if you want stainless steel and have problems finding them try a chandlers. For a mast you can buy steel pipe. For a mast-to-boom clamp you may need a piece of aluminium or steel sheet, if you find a good source please tell the who can suggest antenna designs.