Proxim TSUNAMI CPN 65756B 사용자 설명서

As described previously, Proxim Corporation offers different types of outdoor antennas and cable lengths for 

your network design. 

The directional antennas provide maximum range, but due to their narrow beamwidth, these antennas 

require precise antenna alignment to achieve optimal performance. The higher the antenna gain, the more 

precise the alignment should be. 

Directional antennas are typically used to connect: 

▪ 

A Base Station Unit and a Subscriber Unit in a point-to-point link 

▪ 

A Subscriber Unit in a point-to-multipoint network 

The omni-directional antennas have, by nature, an omni-directional azimuth pattern that makes them easy to 

install.  There is also a gain beamwidth relation for omni-antennas:  The higher the gain of the omni-antenna, 

the narrower the vertical beamwidth.  In a hilly terrain, a 7dBi omni-directional antenna can be a better 

solution than the 10 dBi omni-directional antenna. 

The 12 dBi wide-angle antenna is a good Base Station antenna for hilly terrain.  It combines a wide opening 

angle with relatively high gain. The mounting brackets allow tilting of the antenna.  This antenna also is used 

when the amount of traffic in a cell is too high for a single Base Station with an omni-directional antenna.  

The wide-angle antenna allows dividing the cell into three sectors that each can be serviced by a Base 

Station. 

For beamwidth and gain characteristics of the various antennas, consult the appendixes of this manual, 

which describe each antenna in more detail. 

The length of the antenna cable also has an impact on the maximum range that can be achieved with the 

Depending upon local radio regulations in a number of countries that limit the maximum output power, 

Proxim Corporation offers different outdoor antenna products in the various countries around the world.   

Data Speed of the Wireless Link 

By default, the radio of Tsunami MP.11a products transmits at the highest available transmit rate. 

As data transmissions at lower speeds can travel larger distances than transmissions at the highest transmit 

rate, the system lets you choose a lower data rate to increase the maximum range.  For information about 

customizing the transmit rate of your system, consult the Tsunami MP.11 and MP.11a Installation and 

Management Guide (which is shipped with the Tsunami MP.11a). 

 

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