Teletronics 2.4GHz 1 Watt SmartAmp User Manual
Page 11
Page
10
11. Path Loss Calculation
Loss
=
32.44 + 20 log f + 20 log d [where f = frequency in MHz and d= distance in km]
System Gain =
Po (Tx power) + Gt (Tx antenna gain) + Gr (Rx antenna gain) - Mf (fade margin) - Ms
(system margin) - Pr (minimum receive signal level)
Decibels-Watts conversion Table
DB mW DB
Watts
0
1.0
31
1.3
1 1.3
32
1.6
2 1.6
33
2.0
3 2.0
34
2.5
4 2.5
35
3.2
5 3.2
36
4.0
6 4.0
37
5.0
7 5.0
38
6.3
8 6.3
39
7.9
9 7.9
40
10.0
10
10.0
41
12.6
11 12.6
42
15.8
12 15.8
43
20.0
13 20.0
44
25.1
14 25.1
45
31.6
15 31.6
46
39.8
16 39.8
47
50.1
17
50.1
48
63.1
18 63.1
49
79.4
19 79.4
50
100.0
20
100.0
51
125.9
21 125.9
52
158.5
22 158.5
53
199.5
23 199.5
54
251.2
24
251.2
55
316.2
25 316.2
56
398.1
26 398.1
57
501.2
27
501.2
58
631.0
28 631.0
59
794.3
29 794.3
60
1000.0
30 1000.0
61
1258.9