Originally Posted by 300ohm
There are also taller and wider beer cans
What about Steel?
Stronger but harder to work with, less conductive, but anyway:
For making the smaller
(The larger VHF is probably better built in a wire frame).
1. Paint Cans?
I was also thinking about Paint Cans (buy new empty clean ones).
Because they might be near the right size for UHF. Shorter and wider.
Quart, litre, gallon size?
They are made of chrome plated steel - stronger.
2. Round Air Duct Tubing?
Also thinking about galvanized steel round AIR DUCT tube.
(I think I have a short length of some scrap 4 or 5 inch diameter)
Bought in lengths - fairly inexpensive - could make UHF cones easy.
Easily found as scrap.
In both cases - cut, form cone and rivet.
[ Side note: mounted vertically - these BICONICAL antennas are OMNI-Directional - to the horizon it says ... they may not have much GAIN - but for a local, wide band RECEIVE ALL antenna - may have their uses. )