I am not providing
build instructions - so don't ask
Today I made an antenna for experiments on 2.4GHz.
Its a 7 element Quad.
The 1.2mm copper wire is held in place on a plastic tube with
It has fallen over a few times already (like Pamela Anderson , its a
bit top heavy) and its not been damaged , its quite a tough little
I fed it with about 10 meters of RG-213 , and for this frequency its
loss is a bit too high , but it works well anyway and it should provide
gain somewhere in the region of 15 to 17dB , double that of a Yagi with
the same number of elements.
Here I have it on my balcony aimed at a nearby apartment building.
The building is about 250 to 300 meters away and is obscured by trees ,
not only that but its half over the hill.
This gave 18 more signals than can be picked up by my normal antenna.
When I first tried the antenna last night the signal list scrolled off
the screen with approximately 50 new signals - WOW.
It was good to see that most of them employ some sort of security.
Today I did a test of the antenna and I am truly surprised with the
It proves to be highly directional with good gain.
On the test signal with a standard wi-fi antenna in place it measured
up as -63dbm and 67% good signal.
With the Quad connected this improved to -52dbm and 85% good signal.
An improvement of 11dbm over the stock antenna.