|Home||Internet of Things||Aerospace||Apparel||Energy||Defense||Health Care||Logistics||Manufacturing||Retail|
Ask The Experts Forum
Do Active RFID Antennas Broadcast All the Time?
If an RFID reader continuously emits radio waves, then what about its wastage power if no tag is there?
No, active antennas do not broadcast all the time. Readers can be set to emit energy on a predefined duty cycle. This means you can have one emit energy for a minute, stop for 10 minutes, emit for another minute and so forth. You can also set up the device to emit energy only when an electric eye is tripped, indicating there is something approaching that needs to be interrogated. For an active real-time locating system, the tags send out a signal, and the readers simply receive it.
—Mark Roberti, Founder and Editor, RFID Journal
Login and post your comment!
Not a member?
Signup for an account now to access all of the features of RFIDJournal.com!
SEND IT YOUR WAY
RFID JOURNAL EVENTS
ASK THE EXPERTS
Simply enter a question for our experts.
TAKE THE POLL
|RFID Journal LIVE!||RFID in Health Care||LIVE! LatAm||LIVE! Brasil||LIVE! Europe||RFID Connect||Virtual Events||RFID Journal Awards||Webinars||Presentations|