fix iMac wifi-performance with airport?

[madsdk]

Hello.

My iMac recieves my wifi-signal very, very poorly compared to any other phone, pc-laptop right next to it. I've found quite a few forum threads, complaining about the same issue.

It's a shared connection and I can't easily change router settings - I am, however, able to get hold of an Airport.

So I wonder if
- the Airport can receive the wifi-signal and bounce it further so I can reach it with my iMac
- or maybe use the Airport as an external receiver, plugged directly into the iMac

What do you think?

Thanks!