Extending wireless networks

[lmh100]

Hi,

Looking for some advice on extending an existing wireless network.

Essentially the current is not strong enough due to old thick walls.
How do I go about extending the signal?
Do you use access points such as these?

http://www.overclockers.co.uk/showproduct.php?prodid=NW-012-NG

Thanks in advance

 

[lmh100]

hi, 1)unfortunately, the hub is stuck pretty much where it is.
2) not quite sure what this is - a big areial?
3)+5) its a BT homehub, and after a quick, i dont tihnk u can get into the hub firmware, or really change any of the settings........

4) that leaves me thinking buying an AP with bridge / repeater mode?, if so can u recommend any good ones?

Thanks for the help