7-A-008: Frequency Bands
7-008A:
Which of the following systems is most likely to be subject to fading or static interference?
HF SITOR
Inmarsat
Digital Selective Calling on channel 70.
VHF ARQ
7-008B:
Which system is most likely to be affected by atmospheric disturbances?
MF/HF radiotelephony
VHF DSC
Inmarsat
SafetyNETTM
7-008C:
Which of the following systems is least likely to be subject to fading or static interference?
Inmarsat
HF SITOR
MF-HF DSC Controller
VHF ARQ
7-008D:
Which system is least likely to be affected by atmospheric disturbances?
Inmarsat
NAVTEX
MF NBDP
HF NBDP
7-008E:
Which of the following frequency bands would most likely provide reliable communications between two stations that are 100 miles (160 km) apart?
The Medium Frequency (MF) band.
The Low Frequency (LF) band.
The High Frequency (HF) band.
The Very High Frequency (VHF) band.
7-008F:
Which system has the least effective radius of operation?
VHF DSC
HF SITOR
MF NBDP
NAVTEX
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Color key:
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● = Unseen
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● = Weak
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● = Review
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● = Learned
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● = Incorrect answer
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