Cabletron Systems 802.11 manual RoamAbout 7-dBi Omni-Directional Antenna

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Site Preparation Guide

RoamAbout 7-dBi Omni-Directional Antenna

The RoamAbout 7-dBi Omni-Directional Antenna is a broadband antenna for the 2.4 GHz frequency band featuring an omni-directional pattern with a nominal gain of 7 dBi.

This antenna is encapsulated in a weatherproof protective covering. With the hardware provided, this vertically-polarized antenna can be mounted on an antenna mast with an outside diameter of up to 51mm (2 in).

Mechanical

Size

45.7 cm (18 in)

Mounting method

Clamps to vertical mast with outside

 

 

diameter up to 51mm (2 in)

 

 

Cable

 

 

 

 

Type

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

 

 

 

Length

15 cm (6 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 Nominal

 

 

 

Nominal Impedance

50 Ohms

 

 

 

Gain

7-dBi

 

 

 

Polarization

Linear Vertical

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 feet)

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 Overview Site Preparation GuideLine of sight RequirementsLightning protection Grounding systemSite Preparation Guide Potential Obstacles to Line of Sight not to scale Large Reflecting Surfaces Factors that can reduce antenna rangeFresnel Zone Required Data for Antenna Installation CompanyFresnel Zone Other Considerations RoamAbout 14-dBi Directional Antenna Antenna OptionsVswr 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 Your email address For Additional Assistance