User manual

Appendix A: Path Evaluation Information A-7
Moseley SL9003Q 602-12016 Revision G
Table 8-1 Typical Antenna Gain
ANTENNA TYPE 450 MHz BAND 950 MHz BAND
5 element Yagi
12 dBi 12 dBi
Paraflector
16 dBi 20 dBi
4' Dish* (1.2 m)
13 dBi 19 dBi
6' Dish* (1.8 m)
17 dBi 23 dBi
8' Dish* (2.4 m)
19 dBi 25 dBi
10' Dish* (3.0 m)
22 dBi 27 dBi
C. Line 4. Total lines 1, 2, and 3, and enter here. This is the total gain in the proposed
system.
D. Line 5. Enter amount of free space path loss as determined by the formula given in
Section A.2.2, or see the table below.
Table 8-2 Free Space Loss
DISTANCE 450 MHz 950 MHz
5 Miles (8 km)
104 dB 110 dB
10 Miles (16 km)
110 dB 116 dB
15 Miles (24 km)
114 dB 120 dB
20 Miles (32 km)
116 dB 122 dB
25 Miles (40 km)
118 dB 124 dB
30 Miles (48 km)
120 dB 126 dB
E. Line 6. Enter the total transmitter transmission line loss. Typical losses can be found in
Table A3.
Table 8-3 Transmission Line Loss
FREQUENCY BAND LDF4-50
(per 100 meters)
LDF5-50
(per 100 meters)
330 MHz
4.6 dB 2.4 dB
450 MHz
5.5 dB 2.9 dB
470 MHz
5.7 dB 3.0 dB
950 MHz
8.3 dB 4.6 dB