I recently did a comparo between a corner reflector antenna based on the EZ-10 (of quoted gain = 10 dbi) and a 30 cm diameter stainless salad dish /usb adapter reflector. Both 54G.
The weak reference signal was 100 metres away.
The corner reflector hanging off a Belkin PCI card and very short pigtail pulled in the chosen signal at 18 - 20%.
The dish in the same position using a USB Belkin adapter pulled it in at a constant 40%.
The internal antenna on the laptop used for the USB didn't pick up anything.
So can I make an assumption on the gain of the USB dish, based on the supposed gain of the EZ-10, given the different transmitters?
The EZ-10 clone is actually my EZY-F freestanding unit - but the specs are identical.
The salad bowl is a perfect half sphere except for the 10 cm flat base, so the beamwidth should equate closely to a half sphere.
I had a browse on the net but it wasn't very helpfull.
Can I assume the dish is greater than 10 dbi?