I have a question about detecting RFID tags at long range. I understand there are LF, HF,and UHF RFID frequencies.
I'm looking to detect a tag from a minimum distance of 2 meters (actually, 5 meters if possible). I would really like to us HF chips, but I'm not sure if it's possible to detect those from that distance.
I was thinking of using passive tags, but if it's necessary to use an active one I wouldn't be so against it.