CATV.Cable And Signal Loss Math Questions 1

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| By Duncanclayton211

Duncanclayton211

Community Contributor

Quizzes Created: 3 | Total Attempts: 1,544

Questions: 10 | Attempts: 521 | Updated: Jul 4, 2024

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Catv.Cable And Signal Loss Math Questions 1 - Quiz

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.

Questions and Answers

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
Correct Answer
C. 26.4dB

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

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1
0
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
Correct Answer
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
Correct Answer
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
Correct Answer
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
Correct Answer
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
Correct Answer
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
Correct Answer
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.
Calculate the expected signal level at the ETB using the following information.
- Signal level at tapbank output = 25dBmv
- Dropcable length = 126 meters
- Frequencey loss = 1.7dB per 10meters
- A.
  
  +3.58dBmv
- B.
  
  +5.83dBmv
- C.
  
  +1.68dBmv
- D.
  
  +2.58dBmv
- E.
  
  +4.68dBmv
Correct Answer
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
Correct Answer
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
Correct Answer
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

Catv.Cable And Signal Loss Math Questions 1

Calculate the expected signal loss for the following:

Dropcable = 165 meters

Frequency loss = 1.6 dB per 10 meters

Calculate the expected signal loss for the following:

Dropcable = 150 meters

Frequency loss = 1.2 dB per 10 meters

Calculate the expected signal loss for the following:

Dropcable = 217 meters

Frequency loss = 1.8 dB per 10 meters

Calculate the expected signal loss for the following:

Dropcable = 250 meters

Frequency loss = 1.3 dB per 10 meters

Calculate the expected signal loss for the following:

Dropcable = 65 meters

Frequency loss = 1.9 dB per 10 meters

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

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

Calculate the expected signal level at the ETB using the following information.

Signal level at tapbank output = 25dBmv

Dropcable length = 126 meters

Frequencey loss = 1.7dB per 10meters

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

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

Catv.Cable And Signal Loss Math Questions 1

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

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

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

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

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

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

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

Calculate the expected signal level at the ETB using the following information. Signal level at tapbank output = 25dBmv Dropcable length = 126 meters Frequencey loss = 1.7dB per 10meters

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

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