D-Link DWL-1800 Antenna Polarization, Cell Size/Link Distance, Using Outdoor Range Tables

2.3.5 Antenna Polarization

Antenna polarization must be the same at both ends of the link. In most applications, the preferred orientation is vertical polarization, which is best for above ground propagation.

2.3.6 Cell Size/Link Distance

Cell size is determined by the maximum possible distance between the DWL-1800B and a DWL-1800R unit. For open outdoor areas with an unobstructed line of sight between the BU-DWL-1800B and the DWL-1800R units, the suggested maximum distance is up to 6 miles (10Km) where ETSI is the regulatory domain and 15 Miles (25 Km) where FCC is the regulatory domain.

2.3.7 Using Outdoor Range Tables

Specific range tables, guidelines and information about extended cables can be obtained from your local dealer or the D-Linkcentral offices.

Outdoor installations must have a clear line-of-sight between antennas. Solid obstacles such as buildings or hills can prevent the establishment of a link while partial obstacles such as trees or traffic can reduce range. Extended coaxial cables can cause an increase in signal loss and a reduction in range.

2.3.8 Precautions

NOTE: Outdoor units and antennas should be installed ONLY by experienced antenna installation professionals who are familiar with local building and safety codes and, wherever applicable, are licensed by the appropriate government regulatory authorities.

The system complies with the ETS 300 385 standard and is protected against secondary lightning strikes when its outdoor unit is properly grounded according to the applicable country-specific industry standards for protection against lightning. The system complies with EN 61000-4-5, test level 3 (2kV).

Failure to do so may void the D-Link Air Premier DWL-1800 Product Warranty and may expose the end user to legal and financial liabilities. D-Linkand its resellers or distributors are not liable for injury, damage or violation of government regulations associated with the installation of detached antennas.

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