GMDSS GOC HF Distress Frequency Flashcards
24 English flashcards for GMDSS GOC revision. Match the five HF distress DSC and voice pairs and catch mistakes in paper readouts.
Về bộ thẻ này
Practise the five HF distress frequency pairs used in GMDSS, the Global Maritime Distress and Safety System. Each pair links a digital selective calling (DSC) frequency to a radiotelephony (voice) frequency in the same band. The deck is for trainees revising for the General Operator’s Certificate (GOC) on paper or with simulated readouts.
Start by recalling both frequencies for HF4, HF6, HF8, HF12 and HF16. Then match DSC to voice and voice to DSC. The final cards ask you to read a band label, spot a mix-up between bands or modes, or check a decimal or unit. Related questions are spaced through the deck. Other bands, band selection and radio procedures are outside the scope of these frequency-matching exercises.
The frequency pairs were checked against the IMO distress frequency table and ITU Radio Regulations, Appendix 15. The questions were written independently with AI assistance, and the cover is an original AI-generated illustration. No examination questions, mark schemes or curriculum text were copied. CC0 applies to original material and generated media to the extent applicable rights exist.
Independent, unofficial study material by Open Study Contributor. See the official CEPT GOC syllabus for the broader exam scope. For certification requirements, consult the relevant national authority.
Thẻ trong bộ này
Thẻ 1
Câu hỏi
What are the DSC and voice distress frequencies for HF8?
Câu trả lời
DSC 8414.5 kHz · voice 8291 kHz.
Thẻ 2
Câu hỏi
What are the DSC and voice distress frequencies for HF4?
Câu trả lời
DSC 4207.5 kHz · voice 4125 kHz.
Thẻ 3
Câu hỏi
What are the DSC and voice distress frequencies for HF12?
Câu trả lời
DSC 12577 kHz · voice 12290 kHz.
Thẻ 4
Câu hỏi
What are the DSC and voice distress frequencies for HF6?
Câu trả lời
DSC 6312 kHz · voice 6215 kHz.
Thẻ 5
Câu hỏi
What are the DSC and voice distress frequencies for HF16?
Câu trả lời
DSC 16804.5 kHz · voice 16420 kHz.
Thẻ 6
Câu hỏi
Which HF distress DSC frequency pairs with voice 4125 kHz?
Câu trả lời
4207.5 kHz (HF4).
Thẻ 7
Câu hỏi
Which HF distress voice frequency pairs with DSC 8414.5 kHz?
Câu trả lời
8291 kHz (HF8).
Thẻ 8
Câu hỏi
Which HF distress DSC frequency pairs with voice 6215 kHz?
Câu trả lời
6312 kHz (HF6).
Thẻ 9
Câu hỏi
Which HF distress voice frequency pairs with DSC 12577 kHz?
Câu trả lời
12290 kHz (HF12).
Thẻ 10
Câu hỏi
Which HF distress voice frequency pairs with DSC 16804.5 kHz?
Câu trả lời
16420 kHz (HF16).
Thẻ 11
Câu hỏi
Which HF distress DSC frequency pairs with voice 8291 kHz?
Câu trả lời
8414.5 kHz (HF8).
Thẻ 12
Câu hỏi
Which HF distress voice frequency pairs with DSC 4207.5 kHz?
Câu trả lời
4125 kHz (HF4).
Thẻ 13
Câu hỏi
Which HF distress DSC frequency pairs with voice 12290 kHz?
Câu trả lời
12577 kHz (HF12).
Thẻ 14
Câu hỏi
Which HF distress voice frequency pairs with DSC 6312 kHz?
Câu trả lời
6215 kHz (HF6).
Thẻ 15
Câu hỏi
Which HF distress DSC frequency pairs with voice 16420 kHz?
Câu trả lời
16804.5 kHz (HF16).
Thẻ 16
Câu hỏi
A paper HF8 distress row shows DSC 8291 kHz and voice 8414.5 kHz. What is the error?
Câu trả lời
The labels are swapped. DSC is 8414.5 kHz and voice is 8291 kHz.
Thẻ 17
Câu hỏi
A paper HF4 distress row shows 4207.5 kHz in both columns. Which column is wrong, and what belongs there?
Câu trả lời
The voice column should show 4125 kHz. The DSC entry is correct.
Thẻ 18
Câu hỏi
An HF12 distress training readout shows DSC 12577.0 kHz and voice 12290.0 kHz. Do both frequencies match the HF12 distress pair?
Câu trả lời
Yes. DSC is 12577 kHz and voice is 12290 kHz. The trailing zeros leave the frequencies unchanged.
Thẻ 19
Câu hỏi
An HF6 distress training readout lists DSC 6.312 MHz. What is that entry in kHz?
Câu trả lời
6312 kHz. One MHz equals 1000 kHz.
Thẻ 20
Câu hỏi
A paper HF16 distress row shows DSC 16804.0 kHz and voice 16420 kHz. Which entry needs a correction?
Câu trả lời
The DSC entry should be 16804.5 kHz. The voice entry is correct.
Thẻ 21
Câu hỏi
A training readout pairs DSC 8414.5 kHz with voice 4125 kHz. Do the two HF distress entries belong to the same band?
Câu trả lời
No. DSC 8414.5 kHz belongs to HF8 and voice 4125 kHz belongs to HF4.
Thẻ 22
Câu hỏi
A paper HF12 distress log marks 12290 kHz as DSC. Which mode label belongs on that entry?
Câu trả lời
Radiotelephony (voice).
Thẻ 23
Câu hỏi
An HF6 paper distress worksheet lists voice 6215 kHz. A second readout lists that field as 6.125 MHz. Do the displays agree?
Câu trả lời
No. 6215 kHz equals 6.215 MHz.
Thẻ 24
Câu hỏi
A distress worksheet row lists DSC 16804.5 kHz and voice 16420 kHz with the band label blank. Which HF band label fits?
Câu trả lời
HF16 (the 16 MHz band).
24 thẻ
GMDSS GOC HF Distress Frequency Flashcards
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