Re: Has to be within range
I have ethically hacked, as in taken over my own wi-fi router and intercepted a client using it, from a Landrover parked >2.5 kilometres away on a hill. Because I was asked to do it, in writing, and then it was publicly published somewhere in IEEE proceedings or similar, never to be seen again. been there done that!
£99 https://hakshop.com/products/wifi-pineapple or similar
£99 https://www.wimo.com/download/18686.24.pdf (1MB pdf) to get you >sixty watts EIRP
tho' many wardrivers, and I know some - they do exist - probably use the ebay £40 Alfa.com.tw adapters with a 9-dBi vertical (the wardrivers that I know have toured my area, and done a slurp on all open/WEP/WPS APs, plotted them on OS maps or equivalent, and $Deity alone knows what they are up to)