Справочник Пользователя для Cabletron Systems 9033073
Calc
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-9
Table D-4
Actual Clearance and Typical Range
Dynamic
Range
Range
Optimal
Clearance
Line-of-Sight Clearance that is Actually Available
5 m (16.5 ft)
10 m (33 ft)
15 m (50 ft)
20 m (66 ft)
meters
(ft)
km
(mi)
km
(mi)
km
(mi)
km
(mi)
106.8 dB
5.8
(19.1)
2.0
(1.2)
2.1
(1.3)
2.1
(1.3)
2.1
(1.3)
108.5 dB
6.5
(21.4)
2.2
(1.4)
2.5
(1.6)
2.5
(1.6)
2.5
(1.6)
109.8 dB*
7.0
(23.0)
2.4
(1.5)
2.9
(1.8)
2.9
(1.8)
2.9
(1.8)
110.2 dB
7.2
(23.7)
2.5
(1.6)
3.0
(1.9)
3.0
(1.9)
3.0
(1.9)
111.5 dB*
7.8
(25.7)
2.7
(1.7)
3.6
(2.2)
3.6
(2.2)
3.6
(2.2)
113.2 dB*
8.7
(28.6)
3.1
(1.9)
4.3
(2.7)
4.3
(2.7)
4.3
(2.7)
113.8 dB
9.0
(29.6)
3.2
(2.0)
4.6
(2.9)
4.6
(2.9)
4.6
(2.9)
115.5 dB
10.1
(33.2)
3.6
(2.2)
5.6
(3.5)
5.6
(3.5)
5.6
(3.5)
116.8 dB*
11.1
(36.5)
3.9
(2.4)
6.2
(3.9)
6.5
(4.0)
6.5
(4.0)
117.2 dB
11.5
(37.8)
4.1
(2.5)
6.5
(4.0)
6.8
(4.2)
6.8
(4.2)
118.5 dB*
12.6
(41.5)
4.4
(2.7)
7.3
(4.5)
8.0
(5.0)
8.0
(5.0)
120.2 dB*
14.4
(47.4)
5.1
(3.2)
10
(6.2)
9.7
(6.0)
9.7
(6.0)
120.8 dB
15.1
(49.7)
5.2
(3.2)
8.2
(5.1)
10.3
(6.4)
10.3
(6.4)
122.5 dB
17.5
(57.6)
5.7
(3.5)
9.1
(5.7)
12.0
(7.5)
12.0
(7.5)
123.8 dB*
19.8
(65.1)
6.4
(4.0)
9.6
(6.0)
12.7
(7.9)
14.6
(9.1)
124.2 dB
20.6
(67.8)
6.7
(4.2)
10.1
(6.3)
12.7
(7.9)
15.3
(9.5)
125.5 dB*
23.5
(77.3)
7.1
(4.4)
10.7
(6.6)
14.1
(8.8)
16.9
(10.5)
127.2 dB*
28.5
(93.8)
7.8
(4.8)
11.8
(7.3)
14.9
(9.3)
17.9
(11.1)