Ya know, someone should have said when they were proposing this system - "What Frequency Does This Operate At?"
There are only a couple of common frequencies for RFID. Some are commonly in use, like 2.4-5.8 GHZ (WiFi / Bluetooth), where others are less commonly in use, like 13.56 & 433MHZ. The less commonly used ones are also most commonly used for short range (<50').
Did they just mess up and pick the wrong one, or were they trying to hedge their bet and make sure the readers would read, even at a "distance". I'd be concerned at the latter - I know you can read RFID from a real distance away, and I'd rather not be ID'd, location-wise, from every cashier's stand in the park.
Does anyone out there know what style / frequency the current RFID systems use?
James