Installation Manual

Tsunami Multipoint Version 1.3 Installation Guide
Chapter 1. Site Planning
The installation of a wireless network requires much the same basic planning as any wired network. The
main difference is that the wireless signal requires some additional planning. This planning includes RF
path planning, site preparation, and installation of outdoor components, such as outdoor units, antennas,
lightning protection devices, and cabling suitable for outdoor conditions.
Although the technology implemented in this broadband fixed wireless system can make use of multi-
path signals to reduce the effect of obstructions in the path, the characteristics of the path must be
carefully examined. With this knowledge, components and network requirements can be correctly
planned for your specific application.
This section provides insight into the planning necessary to prepare your site for your broadband fixed
wireless system.
General Considerations
A basic consideration is the physical location of the sites at each end of the link. Because microwave
signals travel in a straight line, a clear line-of-sight between antennas is ideal. Frequently, however, the
locations of the desired links are fixed. When you cannot achieve a clear line-of-sight, you must plan
accordingly.
Other general site considerations include:
▪ Whether a tower must be constructed (and whether permits are required)
▪ Possibility of future obstructions
º Will trees grow high enough to interfere with the signal? Are there plans to erect buildings
between the sites that may obstruct the path?
▪ Availability of grounding
º Good grounding is important. Also, in areas prone to lightning, a lightning arrestor is strongly
recommended.
▪ Distance between the indoor portion of the system and the user’s network.
▪ Whether the SU may potentially be served by different BSUs. Prior to installation, try to determine
the best BSU access and available sighting location.
▪ Whether strong RF interference exists in the neighborhood, within or adjacent to the operating
frequency.
The following sections are provided to help you determine which information is critical to your site, and to
aid in the decision-making process.
Chapter 1. Site Planning 7
CPN 63179 Issue Date: 01/24/03