Fairly close to the roof so the ground plane is only a little.
Ham antennas above metal barn roof.
As promised earlier we are now going.
I recently put a ham radio antenna on my roof so i could get better signal inside my apartment which isn t on a high floor.
Thus buildings with a metal roof or many metal components will face difficulty watching tv.
And above the roof like a tree or a nearby house.
I operate qrp mostly on 20 but also some on 10.
I have just put up a magnetic loop on a metal aircraft hangar roof.
A dozen tests on 40 and 60m showed an average of 4 6 db better reports than a full wave delta loop at the same 20 height above ground using the same power.
Also modern buildings have plumbing wiring etc.
You ll still need to get the antenna above the roof or it will be deaf in one direction is it possible to bury a bucket full of cement about 30 feet or more from the house with a short scaffold pole set in it which you can drop your antenna mast into run three guy lines from the top of the mast and presto.
This is possible with a metal roof on a home barn garage carport rv porch and metal sheds or awnings and even on commercial buildings.
As an ultra beginner without a lot of investment in the hobby it was perfectly acceptable to have to climb onto the roof t.
A metal roof discourages the transfer of signal by reflecting it away from you.
Over the years many amateur radio operators have successfully used a metal roof as the ground plane or radial system for their hf vertical antenna.
I plan to get the buddipole antenna buddipole deluxe this coming summer for my various portable ops out at spots where my wife and i go on birding trips.
The antenna is vertically mounted on a tripod and is 4 by 6 using 3 4 copper tubing.