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