Cisco AIR-AP1252AG-E-K9 Hardware Installation Guide - Page 154
Quadruple Phase, Shift Keying
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Glossary M MAC modulation multipath multicast packet Media Access Control address. A unique 48-bit number used in Ethernet data packets to identify an Ethernet device, such as an access point or your client adapter. Any of several techniques for combining user information with a transmitter's carrier signal. The echoes created as a radio signal bounces off of physical objects. A single data message (packet) sent to multiple addresses. O omni-directional This typically refers to a primarily circular antenna radiation pattern. Orthogonal A modulation technique used by IEEE 802.11a-compliant wireless LANs for Frequency Division transmission at 6, 9, 12, 18, 24, 36, 48, and 54 Mbps. Multiplex (OFDM) P packet A basic message unit for communication across a network. A packet usually includes routing information, data, and sometimes error detection information. Q Quadruple Phase Shift Keying A modulation technique used by IEEE 802.11b-compliant wireless LANs for transmission at 2 Mbps. R range A linear measure of the distance that a transmitter can send a signal. receiver sensitivity A measurement of the weakest signal a receiver can receive and still correctly translate it into data. RF Radio frequency. A generic term for radio-based technology. GL-4 Cisco Aironet 1200 Series Access Point Hardware Installation Guide OL-4310-05