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