User's Manual

AZALEA MSR4K44S INSTALLATION GUIDE
COPYRIGHT 2007 AZALEA NETWORKS
14
3.3 The principle of site survey
1) The principles of site survey of MESH networks are as: Mesh No obstacle in 60%
of the 1
st
fresnel zone. It will secure LOS in most areas and the coverage capability is
secured and the number of sites could be saved.
2) If no LOS secured, area in NLOS area could be covered as well, but the distance of
coverage and area of coverage are decreased, more sites are needed to provide
coverage for same area than LOS scenario.
3) Interference must be considered in site selection. New site should avoid known
interference, unless the interference is controlable
3.4 Site Survey Guide
Site survey mainly include location selection and detail site study
z
Site Selection
The site survey engineer should be experienced with good knowledge of
microwave propagation, antenna ,feeder, MSR products and experiences in wireless
network deployment.
Site location selection is the most important step of site survey. MESH network
design engineer will do on site analysis of target area and recording all required site
data, the site data includes terrain information, end-user distribution and their
behavior, radio environment and the coverage target of MESH networks. Power
availability, line access availability , permit of antenna installation are mandatory
aspects to be considered in site survey. It is suggested to hunt more locations than
actual needs that back-up sites can be used if the availability of some sites changed.
Actual measuremet is suggested done for complex radio environment. The ideal
site should meet following requirement:
 minimum obstacles to the target coverage area from the antenna.
 Availability of power
 Availability of Line access for Gateway
 Permit of antenna installation and MSR4K44S mounting.
z
Detailed site study
Site survey engineer should conduct detail measurements according to the plan, the
measurements and records include site location information, antenna selection,
MSR4K44S mounting position etc. Site survey report is suugested to prepared after
all site survey works finished.
¾ Eye measurement: building information, terrain information
Eye measurement is to verify there are any obstacle and reflection in wave
propagation environment and terrain informing, such as building, trees, etc.
¾ Spectrum measurement (optional): radio environment