1-C-16: MF-HF Frequency & Emission Selection
1-16C1:
On what frequency would a vessel normally call another ship station when using a radiotelephony emission?
On 2182 kHz or Ch-16, unless the station knows that the called vessel maintains a simultaneous watch on another intership working frequency.
Only on 2182 kHz in ITU Region 2.
On the appropriate calling channel of the ship station at 15 minutes past the hour.
On the vessel’s unique working radio channel assigned by the Federal Communications Commission.
1-16C2:
What is the MF radiotelephony calling and Distress frequency?
2182 kHz.
2670 kHz.
Ch-06 VHF.
Ch-22 VHF.
1-16C3:
For general communications purposes, paired frequencies are:
Normally used with public coast stations.
Normally used with private coast stations.
Normally used between ship stations.
Normally used between private coast and ship stations.
1-16C4:
What emission must be used when operating on the MF distress and calling voice frequency?
J3E - Single sideband telephony.
A1A - On-off keying without modulation by an audio frequency.
F3E - Frequency modulation telephony.
A3E - Amplitude modulation telephony, double sideband.
1-16C5:
Which of the following defines high frequency “ITU Channel 1212”?
The 12th channel in the 12 MHz band.
Ch-12 in the 16 MHz band.
Ch-1216 in the MF band.
This would indicate the 1st channel in the 12 MHz band.
1-16C6:
For general communications purposes, simplex frequencies are:
Both a) and c) are correct.
Normally used between ship stations and private coast stations.
Normally used with public coast stations.
Normally used between ship stations.
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