The likes of Netstumbler and my connections own monitor show my signal 
strength from my access point as quite strong and connected at full 
speed - but that is never the entire story.

That just shows how well I am receiving the access point, not how well 
the access point is receiving my PC's signal. Often I have a 54Mb 
connection, a very strong signal reported at my PC, but next to no 
actual data through put. Is there a way to interrogate an access point 
to see how good my received signal is?

-- 
Regards,
        Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk