Table D-4

Actual Clearance and Typical Range

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dynamic

Optimal

 

Line-of-Sight Clearance that is Actually Available

 

 

Range

Clearance

 

 

 

 

 

 

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)

Outdoor

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)

Antenna

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)

Installation

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)

Guide

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)

D-9

127.2 dB*

28.5

(93.8)

7.8

(4.8)

 

11.8

(7.3)

14.9

(9.3)

17.9

(11.1)

 

 

 

 

 

 

 

 

 

 

 

 

The Dynamic Range Budget

Calculating Range & Clearance

Page 79
Image 79
Cabletron Systems 9033073 manual Table D-4 Actual Clearance and Typical Range