equipment:
1x mobile phone
1x roll of tape
1x network cable
1x aluminium foil
1x lan cable
1x metal coat hangar
1x plastic bowl
1x wire cutters
method:
Cover the inside of the plastic bowl with foil. straighten out and cut the coat hangar in to 2 long pieces of wire. Place the two pieces of wire on top of the bowl to form a X shape. Get the mobile phone and wrap the LAN cable tightly around it, as many times as possible leaving a 20cm length unwrapped. Use the tape to hold the lan cable onto the phone, and place the plug from the end of the cable into the ethernet socket. Tape the phone onto the centre of the wire X in the bowl.
Congratulations you have just made your own satellite dish.
I have no idea if this works but it was a video on youtube and the guy started with 6 wireless networks being found and ended with 17 and also all original network signal strengths went up by 2 bars.