# Catv.Cable And Signal Loss Math Questions 1

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| By Duncanclayton211
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Duncanclayton211
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Quizzes Created: 3 | Total Attempts: 1,531
Questions: 10 | Attempts: 517

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There are 10 questions in this quiz. And you have 10 minutes to complete it. Pass mark is 85%
You may find it handy to have a pen, paper and if you need it a calculator to hand for working things out.

• 1.

### Calculate the expected signal loss for the following:  Dropcable = 165 meters Frequency loss = 1.6 dB per 10 meters

• A.

26.6dB

• B.

24.5dB

• C.

26.4dB

• D.

29.1dB

• E.

25.4dB

C. 26.4dB
Explanation
Dropcable = 165/10=16.5
16.5 multiplyed by frequency loss 1.6 = 26.4

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• 2.

### Calculate the expected signal loss for the following:  Dropcable = 150 meters Frequency loss = 1.2 dB per 10 meters

• A.

18dB

• B.

21dB

• C.

15dB

• D.

-1dB

• E.

12dB

A. 18dB
Explanation
Dropcable = 150/10=15
15 multiplyed by frequency loss 1.2 = 18

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• 3.

### Calculate the expected signal loss for the following:  Dropcable = 217 meters Frequency loss = 1.8 dB per 10 meters

• A.

39.06dB

• B.

41.02dB

• C.

28.09dB

• D.

41.02dB

• E.

38.09dB

A. 39.06dB
Explanation
Dropcable = 217/10=21.7
21.7 multiplyed by frequency loss 1.8 = 39.06

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• 4.

### Calculate the expected signal loss for the following:  Dropcable = 250 meters Frequency loss = 1.3 dB per 10 meters

• A.

32.5dB

• B.

28.6dB

• C.

33.2dB

• D.

24.8dB

• E.

31.4dB

A. 32.5dB
Explanation
Dropcable = 250/10=25
25 multiplyed by frequency loss 1.3 = 32.5

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• 5.

### Calculate the expected signal loss for the following:  Dropcable = 65 meters Frequency loss = 1.9 dB per 10 meters

• A.

12.35dB

• B.

16.01dB

• C.

18.25dB

• D.

10.36dB

• E.

15.60dB

A. 12.35dB
Explanation
Dropcable = 65/10=6.5
6.5 multiplyed by frequency loss 1.9 = 12.35

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• 6.

### Calculate the expected signal level at the ETB using the following information. Signal level at tapbank output = 28dBmv Dropcable length = 217 meters Frequencey loss = 1.5dB per 10meters

• A.

-4.55dBmv

• B.

-1.58dBmv

• C.

-45.5dBmv

• D.

+4.55dBmv

• E.

+1.58dBmv

• F.

-5.45dBmv

A. -4.55dBmv
Explanation
Dropcable = 217/10=21.7
21.7 multiplyed by frequency loss 1.5 =32.55
Tap output = 28
28 minus 32.55= -4.55

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• 7.

### Calculate the expected signal level at the ETB using the following information. Signal level at tapbank output = 17dBmv Dropcable length = 60 meters Frequencey loss = 1.3dB per 10meters

• A.

+9.2dBmv

• B.

+13dBmv

• C.

+10.2dBmv

• D.

+8.6dBmv

• E.

+12.2dBmv

A. +9.2dBmv
Explanation
Dropcable = 60/10=6
6 multiplyed by frequency loss 1.3 = 7.8
Tap output = 17
17 minus 7.8 = 9.2

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• 8.

• A.

+3.58dBmv

• B.

+5.83dBmv

• C.

+1.68dBmv

• D.

+2.58dBmv

• E.

+4.68dBmv

A. +3.58dBmv
• 9.

### Calculate the expected signal level at the ETB using the following information. Signal level at tapbank output = 19dBmv Dropcable length = 138 meters Frequencey loss = 1.5dB per 10meters

• A.

-3.8dBmv

• B.

-1.7dBmv

• C.

-0.9dBmv

• D.

-1.87dBmv

• E.

-2.7dBmv

B. -1.7dBmv
Explanation
Dropcable = 138/10= 13.8
13.8 multiplyed by frequency loss 1.5 = 20.7
Tap output = 19
19 minus 20.7= -1.7

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• 10.

### Calculate the expected signal level at the ETB using the following information. Signal level at tapbank output = 28dBmv Dropcable length = 180 meters Frequencey loss = 1.9dB per 10meters

• A.

-6.2dBmv

• B.

-2.8dBmv

• C.

-5.7dBmv

• D.

-7.2dBmv

• E.

-8.6dBmv

A. -6.2dBmv
Explanation
Dropcable = 180/10= 18
18 multiplyed by frequency loss 1.9 = 34.2
Tap output = 28
28 minus 34.2 = -6.2

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• Current Version
• Jul 04, 2024
Quiz Edited by
ProProfs Editorial Team
• Oct 03, 2012
Quiz Created by
Duncanclayton211

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