WiFi Glossary
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      Extended Rate Physical (ERP)

      802.11g technology that uses OFDM in the 2.4 GHz band; data rates up to 54 Mbps

      A physical layer technology introduced in 802.11g that uses OFDM (from 802.11a) in the 2.4 GHz band and offers data rates up to 54 Mbps.