OpenAir (communications standard)
Encyclopedia
OpenAir was an early wireless standard promoted by the Wireless LAN Interoperability Forum
Wireless LAN Interoperability Forum
The Wireless LAN Interoperability Forum was an non-profit industry organization founded in 1996 to promote and certify wireless LAN products meeting the OpenAir and IEEE 802.11 standards. It disbanded in 2001...

 implemented predominantly by Proxim Wireless
Proxim Wireless
Proxim Wireless Corporation , is a San Jose, California-based company that builds scalable broadband wireless networking systems for communities, enterprises, governments, and service providers. It claims to offer WLAN, mesh, point-to-multipoint and point-to-point products through a global channel...

 devices. It operates in the 2.4GHz band
ISM band
The industrial, scientific and medical radio bands are radio bands reserved internationally for the use of radio frequency energy for industrial, scientific and medical purposes other than communications....

 and uses frequency hopping
Frequency-hopping spread spectrum
Frequency-hopping spread spectrum is a method of transmitting radio signals by rapidly switching a carrier among many frequency channels, using a pseudorandom sequence known to both transmitter and receiver...

 with 0.8 and 1.6 Mb/s bit rates via 2 or 4 frequency-shift keying
Frequency-shift keying
Frequency-shift keying is a frequency modulation scheme in which digital information is transmitted through discrete frequency changes of a carrier wave. The simplest FSK is binary FSK . BFSK uses a pair of discrete frequencies to transmit binary information. With this scheme, the "1" is called...

modulation.
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