RFID Journal Staff asked 11 years ago Where can I get this?
—Name withheld
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Hmmm. I am unsure what you mean by "long-range," or by "card system."
"Long-range" is a relative term. Passive ultrahigh-frequency (UHF) transponders can be read at a distance of, say, 15 to 20 feet. That is long-range compared to a passive high-frequency (HF) tag, which can be interrogated from 1 to 3 feet away.
Generally speaking, when we refer to long-range RFID, we mean active RFID systems, which can have a read distance of 1,000 feet or more. Most long-range systems don't use cards as their format, however. Transponders in active systems have batteries, so they tend to be thicker, though there are some companies that produce employee badges containing active transponders. I guess these could be considered "card systems."
If you would like to submit another question with additional information about what you hope to achieve, I could perhaps provide a better answer and direct you to businesses that offer solutions able to meet your needs.
—Mark Roberti, Founder and Editor, RFID Journal
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