Anyway, if you have a G5 and have installed an AirPort card yourself, you should know this: Strictly speaking, there are two antennas!
- There's the small internal antenna which you must click into the top of the AirPort card inside the Mac -- this bit is well documented.
- Your Mac originally came with a T-shaped object, which is the external AirPort antenna designed to overcome the metal casing of your Mac. Plug this into the AirPort port on the rear of the machine, and your range will increase from about 1m to ... well, much, much more. Go look in the box -- it's probably still there!

