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GDK-20W DIGITAL WIRELESS KEY TELEPHONE SYSTEM
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B. Base Station Broadcast Range and Location
1.
Base Station Requirements
To determine the number of base station in a system, you should consider base station broadcast range.
2. Base Station Range
In a typical office environment, each base station has a broadcast range of 50 meters and supports an
area of 8,000 square meters, but a broadcast range depends entirely upon office environment. Where
the absence of any obstruction provides perfect line of sight conditions between the base station and
wireless terminal users and if there are no atmospheric limitations, the range may increase to 200
meters.
The following base station broadcast ranges can be used as a rough guide to plan the base station
positions:
z In line of sight, the base station has a range of about 200m.
z In hall, the base station has a range of 40-70m.
z In buildings, the base station has a range of about 25-40m. It assumes that walls are made of light
brick, plasterboard or wallboard with metal frames. Normal electrical wiring, central heating pipes,
office furniture and desktop computer equipment have no significant effect.
r = Typical office environment : up to 50 meters
r = Line of sight : up to 200 meters
Base Station
Figure 3.6.9 Base Station Service Area
The characteristic antenna field pattern is a tours(doughnut) centered on the antenna.
Figure 3.6.10 Base Station Antenna Field Pattern (Vertical)
3. Base Station Location on the Plan Drawing
Determine the location of the base station on the plan drawing according to the previous information
based on the base station broadcast range.