User Manual

Fixed Subscriber Unit Installation Manual Installation Instructions
Release 1.00 10/03/97
Airstar-Wireless Local Loop
4-13
• On a wall or pole that is sufficiently strong, make sure wall
or pole can withstand winds common to the area
• Away from other objects such as poles, trees, buildings, and
so on that block the signal from the Radio Port; in general
the minimum distance is 750 mm.
4.1.3 Antenna Type Determination Guidelines
The Coverage Map shows Radio Port locations and the area covered by the
RP. The type of antenna installed depends on its distance from the Radio Port.
In general:
If distance is… Then use…
Less than 500m 4.5 dBi omni or directional antenna
Between 400m and 700m 7 dBi omni or directional antenna
Greater than 700m 10 dBi directional antenna
Table 4-1 : Antenna Type Determination Guidelines
There may be exceptions to the requirements in Table 4-1 identified by on-site
RSS measurements and/or by the specific radio environment.
4.1.4 Main Unit Site Selection
Choose a suitable location for the FSU Main Unit. Make sure the site will not
expose the device to :
• Direct sunlight
• Dampness or moisture
• Dust
• Magnetic fields
• Vibration
• Extremes of heat, cold or humidity.
Install the FSU on a stable surface, such as a desk or wall. Consider the length
of the AC Adapter cord in determining the Main Unit’s location. To avoid
possible interference from the connected telephone, make sure the Main Unit
is installed at least 1 meter away. To minimize the length of coaxial cable