Cabletron Systems 802.11 manual Vswr

Page 16

Site Preparation Guide

Mechanical

Size

45.7 cm (18 in)

Mounting Method

Vertical mast with an outside diameter

 

 

 

between 35 mm (1.4 in) and 42 mm (1.6

 

 

 

in) using u-bolts.

 

 

 

 

 

 

Wall using plugs and screws.

Cable

Type

RG-58A/U, 50 ohm low-loss coax

Length

20 cm (7.5 in)

 

 

 

Color

White

 

 

Connector

 

 

 

 

FCC Countries

Reverse Polarity-N (Male)

 

 

 

ETSI Countries

Standard-N (Female)

 

 

 

France

Standard-N (Female)

 

 

 

Japan

Standard-N (Female)

 

 

Electrical

 

 

 

 

Frequency Range

2.4 GHz

 

 

 

VSWR

Less than 2:1, 1.5:1 Nominal

 

 

 

Nominal Impedance

50 Ohms

 

 

 

Gain

14-dBi

 

 

 

Front-to-Back Ratio

greater than 20 dB

 

 

 

Half-Power

(-3dB)

 

Beamwidth

 

 

 

 

Vertical (E-plane °)

30.8 Degrees

 

 

 

Horizontal (H-plane °)

31.4 Degrees

 

 

 

Polarization

Linear, Vertical or Horizontal

Antenna Environment

Operating Temperature +60°C (140°F) - 40°C (-40°F)

Wind/survival (mph) At least 128 km/h (80 mph)a

Wind Surface Area 7.56 square cm (0.248 square ft)

a.At least 104 km/h (65 mph) with 1.25 cm (0.5 in) ice.

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Contents RoamAbout Outdoor Antenna Site Preparation Guide Page Iii Page Table of Contents Page Site Preparation Guide OverviewRequirements Lightning protectionGrounding system Line of sightSite Preparation Guide Potential Obstacles to Line of Sight not to scale Factors that can reduce antenna range Large Reflecting SurfacesRequired Data for Antenna Installation Company Fresnel ZoneFresnel Zone Other Considerations Antenna Options RoamAbout 14-dBi Directional AntennaVswr Outdoor Indoor Packaged Kit Component Part Numbers by Domain RoamAbout 7-dBi Omni-Directional Antenna Outdoor Indoor Verify Component Connector Polarity Installation Requirements Reviewing the Site Preparation ChecklistMounting requirements For Additional Assistance Your email address