RDL-3000
INSTALLATION GUIDELINES
70-00159-01-06
Proprietary Redline Communications © 2012
Page
22
of 65
kune 12, 2012
4
Site Survey Information
It is recommended to perform a site survey before installing the RDL-3000 equipment.
The data accumulated during this process is necessary to understand the operating
characteristics and obtain the best performance from the wireless system.
4.1
Planning Activities
4.1.1
RF Interference
Frequency planning is an essential component of installation and it is very important to
test for RF interference at every installation site. The RDL-3000 will not achieve full
operational capability if there is excessive interference on the same or adjacent RF
channel. Use the RDL-3000 built-in spectrum sweep feature to determine if a selected
RF channel is generally free from interference.
4.1.2
Path Profile
The path profile should include the following information:
Table 6: Site Survey - Path Profile Data
Antenna
Description
Location
Instructions that identify the location to install the antenna.
May include blueprints and specify material list.
Height
Mounting height for antenna.
Azimuth
Horizontal aiming direction for the antenna (magnetic or GPS compass)
Elevation angle
Vertical aiming for antenna (spirit level).
Expected RSSI
The expected RSSI value can be determined using the Link Budget Tool
available from Redline Communications.
The site survey should identify the optimum location for mounting the RDL-3000. For
maximum performance, there should be a direct line of sight between all communicating
wireless systems.
Figure 9: Site Survey - Fresnel Zone Radius
Chapter 3