Using Repeaters AR Standard Repeater
044-05250 Rev B 1-13
Sports Arena
In this example, we have a 2000 spectator sports arena with a metallic roof that had an indoor
signal strength too low to provide fair service in most parts of the arena. The nearest base
station was 8 kilometers away and was equipped with only one carrier. A donor antenna
directed towards the BTS was mounted on a mast outside the building and a repeater was
installed inside the building with the service antenna on the ceiling as illustrated in Figure 1-13.
The antenna isolation was measured to over 85dB.
The signal strength was fair for service in the entire arena.
Figure 1-13 Repeater in sports arena.
Measured levels: Received signal level – 80.0 dBm
Donor antenna gain 15.0 dBi
Cable loss – 5.0 dB
Repeater input level – 70.0 dBm
Adjusted repeater gain 75.0 dB
Repeater output level 5.0 dBm
Cable loss – 2.0 dB
Service antenna gain 7.0 dBi
Radiated output level 10.0 dBm
Donor antenna
Service antenna
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