Do You Think It Is Better to Use a Passive or Active RFID Card?

Which should I deploy?

—Name withheld

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It really depends on what you want to do with it. If you need a low-cost card that a user will present to a reader, then a passive high-frequency (HF) or ultrahigh-frequency (UHF) card is best. If the card will be worn next to a person’s body, however, an active or battery-assisted tag would likely be best to ensure that every tag can be read.

—Mark Roberti, Founder and Editor, RFID Journal