Aironet PC3500 Guia do Utilizador descarregar pdf (Página 20)

Radio Antenna

The Snap-On Diversity antenna comes standard with the

PC3500 and provides omni-directional coverage.

A benefit of diversity system is improved coverage. At the

edges of the RF coverage or fringe areas, there are very often

multiple signals reaching the receiver, all from the same

transmitter. These signals travel in different paths (multipath)

and are caused by reflection and shadows of the RF signals.

When the signals combine, the receiver may have trouble

decoding the data. The Aironet radio’s ability to switch and

sample between these antennas allows it to select the optimum

antenna for receiving the packet.

Optional antennas are offered for the PC3500. Consult the

Aironet Antenna Guide document number 710-003725 for

more information.

Security Features

The Aironet PC3500 employs Frequency Hopping Spread

Spectrum Technology, previously developed for military “anti-

jamming” and “low probability of intercept” radio systems.

The Aironet Access Point must be set to the same Service Set

Identifier (SSID) as all other Aironet devices on the wireless

infrastructure. Units with a different SSID will not be able to

directly communicate with each other.

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Aironet PC3500 Guia do Utilizador Página 20