RDL-2000
Installation Guidelines
70-00144-01-01
Proprietary Redline Communications © 2011
Page
12
of 52
March 9, 2011
3
Site Survey Information
Before installing the RDL-2000 equipment, a site survey should be completed and this
data should be available to the installation team. This data will assist the installer to
install the RDL-2000 correctly, and to understand the operating characteristics of the
wireless system during configuration and testing.
3.1 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-2000 will not achieve full
operational capability if there is excessive interference.
RF interference may be caused by another wireless system operating on the same RF
channel or adjacent channels. A simple test may be performed using the RDL-2000
built-in Spectrum Sweep feature to determine if a selected RF channel is generally free
from interference. The RDL-2000 also includes an automatic channel selection feature,
to choose the channel with the lowest detected level of interference. Refer to the RDL-
2000 User Manual for a description of these features.
3.2 Path Profile
The site survey should identify the optimum location for mounting the RDL-2000. For
maximum performance, there should be a direct line of sight between the Master and
Slave system.
Figure 2: Site Survey - Fresnel Zone Radius
The antenna should be positioned to provide maximum clearance within the first Fresnel
zone of the direct path (as high as possible, on either a tall building or tower). A clear
line-of-sight (LOS) path requires clearance above natural and man-made objects by at
least 60% of the First Fresnel zone.
Chapter 3
4Gon www.4Gon.co.uk [email protected] Tel: +44 (0)1245 808295 Fax: +44 (0)1245 808299
