Radwin WinLink 1000, Руководство пользователя

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Stage 2: Physical Survey Chapter 2
RADWIN 1000/2000/5000 User ManualVersion 2.5.30p3 2-3
7. If the site chosen does not meet requirements, consider alternative sites.
8. Use the Link Budget Calculator (on the CD supplied with the RADWIN
1000/2000/5000 or using the RADWIN Manager) to determine the
expected performance.
Stage 2: Physical Survey
The physical site survey reviews the environment of the proposed RADWIN
1000/2000/5000 installation location, to ensure that the link sites are suit-
able for the wireless network. The results of the physical site survey should
be recorded.

To perform a physical survey:
1. From the compass readings taken in the preliminary survey, find the azi-
muth (horizontal position) that the ODU should face towards the second
ODU.
2. Using binoculars, locate any obstructions such as tall trees, high build-
ings, hills or mountains. Look for other RF towers between the two sites.
Mark the locations of the obstructions on the map.
3. Determine the location for the ODU (having regard for existing rooftop
installations and tower space). It should be above any obstructions, con-
sidering the Fresnel zone (see appendix
D ).
4. If you need to install the ODU on a tower, make sure that the tower is far
away from overhead electric power lines.
5. Determine a location for the indoor equipment; it should be as close as
possible to the ODU. At an existing site, there is probably an equipment
room with cable-routing channels.
6. Measure and record the path length of the cable from the ODU position
to the indoor equipment room.
7. Determine the ground and lightning connection points of the installation.
The RADWIN 1000/2000/5000 ODU and IDU must both be grounded.
8. Using the Ohmmeter, measure and record the resistance of the required
installation to the grounding point. The resistance must be less than 1O
ohm.
Note
It is advisable to go on a clear day, so you can more easily see any
obstructions between the two sites.
Note
The IDU - ODU cable length limit is 100m, in accordance with IEEE 10/
100BaseT standards.