Motorola AP 5131 - Wireless Access Point, Specifications Manual

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1-8 Enterprise Wireless LAN Antenna Specification Guide
1.2.3 Antenna Performance Characteristics
1.2.3.1 Frequency
The frequency band within which the antenna performs at the stated specifications
1.2.3.2 Gain (dBi)
The relative amplification of the antenna with respect to an equivalent isotropic antenna, expressed on the
decibel logarithmic scale.
1.2.3.3 Cable loss (dB)
The signal strength loss introduced by the cable connected to the antenna expressed on the decibel
logarithmic scale.
1.2.3.4 Net gain (dBi)
The resulting amplification of the antenna paired with its cable.
1.2.3.5 Polarization
The orientation of the electrical field which the antenna is optimized to receive. If the transmitting and
receiving antennas are both linear polarized, then turning one 90° so that they are cross polarized will reduce
the range significantly.
1.2.3.6 VSWR
Voltage Standing Wave Ratio (VSWR) is the ratio of maximum voltage to minimum voltage along the line.
Expresses the degree of match between the transmission line and the terminating element (antenna). When
VSWR is 1:1 the match is perfect, a VSWR of 1.5:1 corresponds to 96% power efficiency.
1.2.3.7 Azimuth 3dB Beamwidth
Width of the antenna beam on the horizontal plane expressed in degrees.
1.2.3.8 Elevation 3dB Beamwidth
Height of the antenna beam on the vertical plane expressed in degrees.
1.3 Antenna Accessories for Motorola Enterprise WLANs
Motorola offers a complete selection of antennas and accessories to ensure optimal coverage and
performance for 802.11a/b/g wireless LANs. Regardless of the size or layout of your environment, from a
small office or storefront to campus-wide, multiple-site, indoor and outdoor deployments, Motorola offers
the antennas, cables and accessories designed to fit your needs.
By combining this portfolio with a broad line of wireless switches, access ports, access points, client
connectivity cards, ruggedized mobile voice/data devices and network management software, as well as
wireless mobility planning and deployment services, Motorola offers comprehensive end-to-end wireless
enterprise LAN solutions, giving you secure, reliable access to your critical business data and applications
at the point of activity. For more information on Motorola's wireless products, visit
www.motorola.com .