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.
Bu deste hakkında
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.
Bu destedeki kartlar
Kart 1
Soru
What are the DSC and voice distress frequencies for HF8?
Cevap
DSC 8414.5 kHz · voice 8291 kHz.
Kart 2
Soru
What are the DSC and voice distress frequencies for HF4?
Cevap
DSC 4207.5 kHz · voice 4125 kHz.
Kart 3
Soru
What are the DSC and voice distress frequencies for HF12?
Cevap
DSC 12577 kHz · voice 12290 kHz.
Kart 4
Soru
What are the DSC and voice distress frequencies for HF6?
Cevap
DSC 6312 kHz · voice 6215 kHz.
Kart 5
Soru
What are the DSC and voice distress frequencies for HF16?
Cevap
DSC 16804.5 kHz · voice 16420 kHz.
Kart 6
Soru
Which HF distress DSC frequency pairs with voice 4125 kHz?
Cevap
4207.5 kHz (HF4).
Kart 7
Soru
Which HF distress voice frequency pairs with DSC 8414.5 kHz?
Cevap
8291 kHz (HF8).
Kart 8
Soru
Which HF distress DSC frequency pairs with voice 6215 kHz?
Cevap
6312 kHz (HF6).
Kart 9
Soru
Which HF distress voice frequency pairs with DSC 12577 kHz?
Cevap
12290 kHz (HF12).
Kart 10
Soru
Which HF distress voice frequency pairs with DSC 16804.5 kHz?
Cevap
16420 kHz (HF16).
Kart 11
Soru
Which HF distress DSC frequency pairs with voice 8291 kHz?
Cevap
8414.5 kHz (HF8).
Kart 12
Soru
Which HF distress voice frequency pairs with DSC 4207.5 kHz?
Cevap
4125 kHz (HF4).
Kart 13
Soru
Which HF distress DSC frequency pairs with voice 12290 kHz?
Cevap
12577 kHz (HF12).
Kart 14
Soru
Which HF distress voice frequency pairs with DSC 6312 kHz?
Cevap
6215 kHz (HF6).
Kart 15
Soru
Which HF distress DSC frequency pairs with voice 16420 kHz?
Cevap
16804.5 kHz (HF16).
Kart 16
Soru
A paper HF8 distress row shows DSC 8291 kHz and voice 8414.5 kHz. What is the error?
Cevap
The labels are swapped. DSC is 8414.5 kHz and voice is 8291 kHz.
Kart 17
Soru
A paper HF4 distress row shows 4207.5 kHz in both columns. Which column is wrong, and what belongs there?
Cevap
The voice column should show 4125 kHz. The DSC entry is correct.
Kart 18
Soru
An HF12 distress training readout shows DSC 12577.0 kHz and voice 12290.0 kHz. Do both frequencies match the HF12 distress pair?
Cevap
Yes. DSC is 12577 kHz and voice is 12290 kHz. The trailing zeros leave the frequencies unchanged.
Kart 19
Soru
An HF6 distress training readout lists DSC 6.312 MHz. What is that entry in kHz?
Cevap
6312 kHz. One MHz equals 1000 kHz.
Kart 20
Soru
A paper HF16 distress row shows DSC 16804.0 kHz and voice 16420 kHz. Which entry needs a correction?
Cevap
The DSC entry should be 16804.5 kHz. The voice entry is correct.
Kart 21
Soru
A training readout pairs DSC 8414.5 kHz with voice 4125 kHz. Do the two HF distress entries belong to the same band?
Cevap
No. DSC 8414.5 kHz belongs to HF8 and voice 4125 kHz belongs to HF4.
Kart 22
Soru
A paper HF12 distress log marks 12290 kHz as DSC. Which mode label belongs on that entry?
Cevap
Radiotelephony (voice).
Kart 23
Soru
An HF6 paper distress worksheet lists voice 6215 kHz. A second readout lists that field as 6.125 MHz. Do the displays agree?
Cevap
No. 6215 kHz equals 6.215 MHz.
Kart 24
Soru
A distress worksheet row lists DSC 16804.5 kHz and voice 16420 kHz with the band label blank. Which HF band label fits?
Cevap
HF16 (the 16 MHz band).
24 kart
GMDSS GOC HF Distress Frequency Flashcards
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