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Tsunami MP.11a Antenna Installation Guide
Chapter 2. Determining Range and Clearance
When you read about wireless outdoor products, you often encounter the terms output power of the radio
and gain of the antenna equipment as measures for the strength of the transmitted signal.
▪ Output power of radio equipment often depends on maximum limits as defined by local radio regulations;
consequently, output power is, by definition, not the way to enhance wireless performance.
▪ High gain antennas are larger in size than low gain antennas and are characterized by a narrow focus of
the antenna beam. These two characteristics make it more difficult to aim the antennas and adjust
antenna alignment to optimize the performance of the wireless point-to-point link.
The Tsunami outdoor solution is based upon the following principles:
▪ An output power and antenna gain that comply with the maximum limits as defined by local governing
bodies concerning radio transmissions.
▪ Enhanced radio sensitivity for optimal receive quality of radio signals transmitted by remote antennas.
DETERMINING THE OUTDOOR RANGE
The range of your outdoor antenna installation is closely related to a number of different factors. To let you
determine the range of the Tsunami MP.11a antenna system in your situation, we have defined the following
formula:
Range = Maximum Range x Cable Factor x Clearance Factor
where:
Maximum Range
Identifies the theoretical maximum that could be achieved under optimal
circumstances using the available Tsunami MP.11a products according to their
specifications and in compliance with local radio regulations.
Cable Factor
Identifies a correction value (percentage) that compensates for additional cable
losses related to the type of cables used at both ends of the wireless link. (See
“Cable Factor” on page 17.)
Clearance Factor
Identifies a correction value (in percentage) that should be used in case the
signal path of your wireless link does not provide the minimum clearance as
listed in the Maximum Range table. (See “Clearance Factor” on page 18.)
Chapter 2. Determining Range and Clearance 16
CPN 65756B Issue Date: August 2003