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Can I Use HF Chips With UHF Scanners?
Is this possible to do?
No. Antennas are tuned to specific frequencies, so just as you can't listen to an FM station using an AM-only radio, you can't communicate with a high-frequency (HF) tag using an ultrahigh-frequency (UHF) reader. Moreover, HF chips employ a different type of tag-reader communication (electromagnetic coupling, versus the backscatter method utilized by UHF tags), and the HF and UHF air-interface protocol standards are different. Essentially, this means HF tags and readers speak French, while UHF tags and readers speak Chinese. As such, UHF readers would not be able to communicate with HF tags.
—Mark Roberti, Founder and Editor, RFID Journal
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