17
Technician’s Installation & Operation Guide
The expected line of sight coverage area is shown below. The total loss of service includes cable losses and divider
losses. The following table shows Uplink coverage. The downlink coverage is wider than the Uplink coverage.
For example, when the input signal level of Donor Antenna Unit (DAU) is -90dBm and coverage is 15m, the total loss of
service side is necessary to make less than 15dB.
Donor input level
(1x RSSI)
Coverage
Total loss of service side
(between SAU and Antennas)
≧
-75dBm
≦
15m
≦
25dB
≦
30m
≦
20dB
≧
-80dBm
≦
15m
≦
20dB
≦
30m
≦
15dB
≧
-85dBm
≦
15m
≦
20dB
≦
30m
≦
10dB
≧
-90dBm
≦
15m
≦
15dB
≦
30m
≦
5dB
≧
-95dBm
≦
15m
≦
5dB
≦
30m
0dB
Installation Guideline
Coverage Area – CDMA 1X RSSI
