note: this isn't directly linux related, but is technology and freedom related.
Does anybody have any advice how to go about essentially duplicating one of these proximity keytags or the signal it emits? http://postech.ca/products/common/cards/crr704a.asp my grandma's senior home (of all places) is being very tenant unfreindly, and has switched from regular keys to these proximity keytags for perimeter building entrances, which itself makes it hard for a family member check up since they wont give extra keytags to family (thats why building mgmt installed the proximity sensors in the first place, they say there was too much key copying going on), but now they have also installed a timer on the front door, which visitors *need* to enter in order to use the buzzer system, and this timer will lock the door to all visitors after 11pm. I think my family is going to find out what they can do about this through various channels, but I figured I would look into trying to find out a way to solve our problems with technology. Basically what I know about these keytags is that they likely use 'modulated backscatter'. Any and all advice is much appreciated. Thanks, Dave
