Cisco Aironet 340 Series User's Guide download pdf (Page 16)

2-16 Cisco Aironet 340 Series Product Features/Speciﬁcations

Glossary

DSSS

A type of spread spectrum radio transmission that spreads its signal continuously over a wide frequency

band.

Long range

A linear measure of the distance that a transmitter can send a signal.

Bandwith

Speciﬁes the amount of the frequency spectrum that is usable for data transfer; it identiﬁes the maximum

data rate that a signal can attain on the medium without encountering signiﬁcant loss of power.

Dual diversity antennas

An intelligent system of two antennas that continually senses incoming radio signals and automatically

selects the antenna best positioned to receive it.

Multi-path

The echoes created as a radio signal bounces off physical objects.

Dual reverse-polarity

Connector types unique to Cisco Aironet radios and antennas. Part 15.203 of the FCC rules covering

spread-spectrum devices limits the types of antennas that may be used with transmission equipment. In

compliance with this rule, Cisco Aironet radios and antennas are equipped with unique connectors to prevent

attachment of nonapproved antennas to radios.

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Cisco Aironet 340 Series User's Guide Page 16