RFID - The Frequencies
There is no single frequency solution.
RFID operates in several frequency bands.
The exact frequency is controlled by the Radio Regulatory body
in each country.
The generic frequencies for RFID are:
125 - 134 kHz
UHF (400 – 960 MHz)
Although there are other frequencies used, these are the main
In the UHF band, there are two areas of interest. Several
frequencies in the 400 MHz band and then the band 860 – 960 MHz
Each of the frequency bands have advantages and disadvantages
for operation. The lower frequencies 125-134kHz and 13.56MHz
work much better near water or humans than do the higher
frequency tags. Comparing passive tags, the lower frequencies
usually have less range, and they have a slower data transfer
rate. The higher frequency ranges have more regulatory controls
and differences from country to country.
The various bodies that control frequencies include the FCC in
the USA and CEPT/ETSI in Europe. For more information on the UHF
regulations in your country, you can
Isn't this what bar codes do?