User's Manual

Intelligent Wireless Nexus Platform
u n w i r i n g o u r w o r l d ™
15
Chapter 4 - Mounting
This section describes how to physically mount the smartBridges’ TOTAL series of products
on the site. The chapter contains the following sections:
• Important Considerations when Choosing the Mounting Location
1. Link Distance
2. Signal Path Clearance (Fresnel Zone)
• Mounting the TOTAL Unit
1. Tower or Pole Mounting
2. Wall Mounting
• Changing Antenna Polarization
Important Considerations when Choosing the Mounting
Location
Each Radio Frequency (RF) application is a unique installation. A site survey is needed
to determine the optimum use of the TOTAL unit to optimize link distance, coverage, and
network performance. The most important considerations are link length and clearance from
obstacles.
The following operating and environmental conditions should be taken into account when
performing a site survey:
• Data rates - Sensitivity and range are inversely proportional to data bit rates. The
data rate increases with a decrease in link distance and/or decrease in receiver
sensitivity.
• Antenna placement - Proper antenna conguration is critical in maximizing radio
range in maximizing radio range. In general, greater heights allow for longer
distances and the avoidance of obstructions. However, do not install the TOTAL
unit at the extreme top of a tower, radio mast or high building to minimize risk of
being directly struck by lightning. It is advisable to install it at least 2 feet below
such heights. Extra height may also increase potential interference from other
unlicensed radio systems.
Note:
Do not install the unit in the proximity of a TV or Radio receiving mast.