User's Manual

Determine Range & Clearance
Determine the Outdoor Range
3-2 ORiNOCO Outdoor Antenna Installation Guide
Determine the Outdoor Range
The range of your outdoor antenna installation is closely related to a number of
different factors. To allow you to determine the range of the ORiNOCO
Outdoor Router antenna system in your situation, we have defined the formula
listed below:
Range = Maximum Range x Cable Factor x Clearance Factor
■ Maximum Range identifies the theoretical maximum that could be achieved
under optimal circumstances using the available ORiNOCO Outdoor
products according to their specs and in compliance with local radio
regulations.
This value can be read from Table 3-1 or Table 3-2, according to the country
where the antenna system will be installed.
■ Cable Factor identifies a corrective percentage value that compensates
additional cable loss related to the type of cables applied at both ends of the
wireless link. The Cable Factor value can be read from Table 3-3 on
page 3-7.
■ Clearance Factor identifies a corrective percentage value that should be
applied in case the signal path of your wireless link does not provide the
minimum clearance listed in the Maximum Range table. The Clearance
Factor can be read from Figure 3-2 on page 3-11.
An example on how to use this formula is described in the “Examples” on
page 3-13.
!
CAUTION:
This formula should only be used as a rule of thumb to asses the
possible range that could be achieved in your situation, and/or to select
the type and height of the antenna installations. Always perform on-site
measurements to validate the results from the range calculation. To
perform such measurements you can use the OR Manager Wireless
Link test option as described in the "ORiNOCO OR Manager - User’s
Guide".