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Subel. B
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60 questions
B
72 questions
C
60 questions
D
24 questions
E
24 questions
F
36 questions
G
24 questions
6 questions
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Subelement B
MF-HF-DSC-SITOR (NBDP) Equip. & Ops:
Section 11
Frequencies and Bandwidth:
11B1
What is the assigned bandwidth and channel spacing for J3E voice transmissions?
A.
170 Hz and 300 Hz
B.
300 Hz and 500 Hz
Correct Answer
C.
2.8 kHz and 3.0 kHz
D.
3.1 kHz and 4.0 kHz
11B1
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11B2
What is the assigned bandwidth and channel spacing for J2B SITOR (NBDP) transmissions?
A.
3.1 kHz and 4.0 kHz
B.
2.8 kHz and 3.0 kHz
C.
170 Hz and 300 Hz
Correct Answer
D.
300 Hz and
500
Hz
11B2
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11B3
What is the allowable frequency tolerance for GMDSS MF-HF transmitters?
Correct Answer
A.
10
Hz
B.
15 Hz
C.
20 Hz
D.
30 Hz
11B3
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11B4
Using a frequency counter with an accuracy of 2 ppm which of the following are within legal tolerance for the frequencies of 2182.0 kHz and 4125.0 kHz? The counter has a display resolution of 1 Hz.
A.
2181.991 kHz and 4125.004 kHz
Correct Answer
B.
2182.006 kHz and 4124.995 kHz
C.
2182.010 kHz and 4124.992 kHz
D.
2181.990 kHz and 4125.009 kHz
11B4
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11B5
Which of the following are assigned frequencies for Digital Selective Calling?
A.
2182 kHz, 4177.5 kHz, 6312 kHz, 8376.5 kHz, 12577 kHz, 16420 kHz.
Correct Answer
B.
2187.5 kHz, 4207.5 kHz, 6312 kHz, 8414.5 kHz, 12577 kHz, 16804.5 kHz.
C.
2187.5 kHz, 4207.5 kHz, 6268 kHz, 8414.5 kHz, 12520 kHz, 16420. kHz.
D.
2174.5 kHz, 4125 kHz, 6312 kHz, 8291 kHz, 12577 kHz, 16804.5 kHz
11B5
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11B6
What are the assigned frequencies for VOICE and SITOR (NBDP) follow on communications?
A.
VOICE: 2182 kHz, 4125 kHz, 6312 kHz, SITOR (NBDP) 4177.5 kHz, 8376.5 kHz, 12520 kHz
B.
VOICE: 8291 kHz, 12577 kHz, 16420 kHz, SITOR (NBDP) 4125 kHz, 6268 kHz, 8376.5 kHz
Correct Answer
C.
VOICE: 4125 kHz, 8291 kHz, 16420 kHz, SITOR (NBDP) 2174.5 kHz, 6268 kHz, 12520 kHz
D.
VOICE: 6215 kHz, 8414.5 kHz, 12290 kHz, SITOR (NBDP) 6268 kHz, 8291 kHz, 12520 kHz
11B6
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