User's Manual

Personnel Alert: Base Station
Area System Planning
Figure 19. Base Station Broadcast Coverage
Note
Determine system planning by using a
45 m (150 ft.) coverage radius around each base
station. Do not exceed the radius as radio
transmissions can be compromised.
4. When a honeycomb pattern system has been
defined on paper, ensure that the selected physical
locations are feasible for installation of the base
stations.
Identify System Obstruction RF Challenges
Radio signals transmit well over flat terrain and open water.
However, buildings, metal tanks, and other obstructions can
interrupt radio transmissions and will therefore require
additional base stations to be strategically placed. Placement
of base stations within buildings and structures is a factor as
walls, pipes, and plant equipment are obstructions.
Additional factors that can reduce area coverage are
• high levels of electrical noise,
• RF interference,
• large metal structures, and
• inadequate number of base stations on a system.
As continuous radio transmissions are essential to ensure
effective and constant communication between the base
station and the badges, line-of-site placement can effectively
resolve obstruction challenges.
System Capacity / Badge Requirements
Next determine how many badges will be receiving
broadcasts from each base station (1-256 per base station).
The badges can be used to only notify personnel of alarms,
or they can also be used for alarm acknowledgement with ID
tracking.
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