Otvoriť aplikáciu

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.

Autor Open Study Contributor

O tomto balíčku

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.

Kartičky v tomto balíčku

  1. Kartička 1

    Otázka

    What are the DSC and voice distress frequencies for HF8?

    Odpoveď

    DSC 8414.5 kHz · voice 8291 kHz.

  2. Kartička 2

    Otázka

    What are the DSC and voice distress frequencies for HF4?

    Odpoveď

    DSC 4207.5 kHz · voice 4125 kHz.

  3. Kartička 3

    Otázka

    What are the DSC and voice distress frequencies for HF12?

    Odpoveď

    DSC 12577 kHz · voice 12290 kHz.

  4. Kartička 4

    Otázka

    What are the DSC and voice distress frequencies for HF6?

    Odpoveď

    DSC 6312 kHz · voice 6215 kHz.

  5. Kartička 5

    Otázka

    What are the DSC and voice distress frequencies for HF16?

    Odpoveď

    DSC 16804.5 kHz · voice 16420 kHz.

  6. Kartička 6

    Otázka

    Which HF distress DSC frequency pairs with voice 4125 kHz?

    Odpoveď

    4207.5 kHz (HF4).

  7. Kartička 7

    Otázka

    Which HF distress voice frequency pairs with DSC 8414.5 kHz?

    Odpoveď

    8291 kHz (HF8).

  8. Kartička 8

    Otázka

    Which HF distress DSC frequency pairs with voice 6215 kHz?

    Odpoveď

    6312 kHz (HF6).

  9. Kartička 9

    Otázka

    Which HF distress voice frequency pairs with DSC 12577 kHz?

    Odpoveď

    12290 kHz (HF12).

  10. Kartička 10

    Otázka

    Which HF distress voice frequency pairs with DSC 16804.5 kHz?

    Odpoveď

    16420 kHz (HF16).

  11. Kartička 11

    Otázka

    Which HF distress DSC frequency pairs with voice 8291 kHz?

    Odpoveď

    8414.5 kHz (HF8).

  12. Kartička 12

    Otázka

    Which HF distress voice frequency pairs with DSC 4207.5 kHz?

    Odpoveď

    4125 kHz (HF4).

  13. Kartička 13

    Otázka

    Which HF distress DSC frequency pairs with voice 12290 kHz?

    Odpoveď

    12577 kHz (HF12).

  14. Kartička 14

    Otázka

    Which HF distress voice frequency pairs with DSC 6312 kHz?

    Odpoveď

    6215 kHz (HF6).

  15. Kartička 15

    Otázka

    Which HF distress DSC frequency pairs with voice 16420 kHz?

    Odpoveď

    16804.5 kHz (HF16).

  16. Kartička 16

    Otázka

    A paper HF8 distress row shows DSC 8291 kHz and voice 8414.5 kHz. What is the error?

    Odpoveď

    The labels are swapped. DSC is 8414.5 kHz and voice is 8291 kHz.

  17. Kartička 17

    Otázka

    A paper HF4 distress row shows 4207.5 kHz in both columns. Which column is wrong, and what belongs there?

    Odpoveď

    The voice column should show 4125 kHz. The DSC entry is correct.

  18. Kartička 18

    Otázka

    An HF12 distress training readout shows DSC 12577.0 kHz and voice 12290.0 kHz. Do both frequencies match the HF12 distress pair?

    Odpoveď

    Yes. DSC is 12577 kHz and voice is 12290 kHz. The trailing zeros leave the frequencies unchanged.

  19. Kartička 19

    Otázka

    An HF6 distress training readout lists DSC 6.312 MHz. What is that entry in kHz?

    Odpoveď

    6312 kHz. One MHz equals 1000 kHz.

  20. Kartička 20

    Otázka

    A paper HF16 distress row shows DSC 16804.0 kHz and voice 16420 kHz. Which entry needs a correction?

    Odpoveď

    The DSC entry should be 16804.5 kHz. The voice entry is correct.

  21. Kartička 21

    Otázka

    A training readout pairs DSC 8414.5 kHz with voice 4125 kHz. Do the two HF distress entries belong to the same band?

    Odpoveď

    No. DSC 8414.5 kHz belongs to HF8 and voice 4125 kHz belongs to HF4.

  22. Kartička 22

    Otázka

    A paper HF12 distress log marks 12290 kHz as DSC. Which mode label belongs on that entry?

    Odpoveď

    Radiotelephony (voice).

  23. Kartička 23

    Otázka

    An HF6 paper distress worksheet lists voice 6215 kHz. A second readout lists that field as 6.125 MHz. Do the displays agree?

    Odpoveď

    No. 6215 kHz equals 6.215 MHz.

  24. Kartička 24

    Otázka

    A distress worksheet row lists DSC 16804.5 kHz and voice 16420 kHz with the band label blank. Which HF band label fits?

    Odpoveď

    HF16 (the 16 MHz band).

Illustration of a pencil and a paper worksheet with five blue and orange pairs on a ship’s chart table.

24 kartičiek

GMDSS GOC HF Distress Frequency Flashcards

Učiť sa tento balíček zadarmo

Otvorí sa Nibomo, aby ste sa mohli začať učiť.

Podobné balíčky