There are a lot of those spare Dish Network antennae in my neighborhood, waiting to be torn down as they continue demolish military housing. I may have to grab one, modify it, and do some war driving.
These cinder block military duplexes I live in are piss poor for WiFi signal, hence my argument that whoever tapped into my network and installed their own workgroup was really looking hard for an external connection. From my family room office, I had to jack the wireless access point up on a shelf near the ceiling, then install a Hawking high-gain antenna just so #2 stepson could get usable signal in his bedroom, not more than 40 feet from the transmitter. Even then, the cinder block walls and hallways degrade the signal strength to less than optimal. Walking around in my backyard with my laptop, the signal from my wireless access point is downright horrible, save for a very narrow corridor where the south window is lined up with the transmitter. I came real close to buying a Linksys WSB24 booster, before they got yanked from the market. Hence my misconception that the 802.11b node on my Ethernet network here was relatively safe from leeches. It was, before I forgot to restore WEP. That's a mistake I won't repeat soon, trust me.