Kako poslati DSC uzbunu za pomoć

Posljednja provjera: 14. listopada 2026.

Korak po korak

1. Samo za ozbiljnu i neposrednu opasnost

   DSC uzbuna za pomoć digitalni je oblik poziva MAYDAY. Koristite je kad postoji ozbiljna i neposredna opasnost i pomoć vam treba odmah.[1]

2. Podignite poklopac i držite crveni gumb

   Podignite poklopac crvenog gumba DISTRESS te ga pritisnite i držite dok se alarm i svjetlo ne ustale i uzbuna ne bude poslana, što obično traje dulje od 3 sekunde.[5][2][16]

3. Dodajte vrstu nevolje ako ima vremena

   Ako imate vremena, mnogi radiouređaji omogućuju da prije slanja u izborniku odaberete vrstu nevolje. Ako nemate, samo pošaljite uzbunu.[13]

4. Provjerite je li pozicija uključena

   Uzbuna sadrži vašu poziciju samo ako radio ima vlastiti GPS ili je spojen na GPS. Ako nije, poziciju morate dati glasom.[8][6]

5. Nastavite s pozivom MAYDAY na kanalu 16

   Kad uzbuna bude potvrđena ili nakon otprilike 15 sekundi, pozovite na kanalu 16: „MAYDAY, MAYDAY, MAYDAY, this is [ime plovila ×3], [pozivni znak], [MMSI]. MAYDAY [ime plovila, pozivni znak, MMSI]. Pozicija… Vrsta nevolje… Potrebna pomoć… Broj ljudi na plovilu… Over.”[3][6][9]

6. Očekujte potvrdu

   Ako ste u dometu, obalna straža trebala bi digitalno potvrditi vašu uzbunu. Dok ne bude potvrđena ili je ne zaustavite, radio automatski ponavlja uzbunu otprilike svake 4 minute.[9][14]

7. Ostanite uz radio

   Ostanite uz radio i slušajte kanal 16. Spasioci vas mogu brže pronaći ako ostanete u vezi.[24]

8. Upotrijebite i EPIRB ili PLB

   Ako imate EPIRB, on je vaše drugo sredstvo za uzbunjivanje.[7]

9. Pritisnuli ste ga greškom? Odmah opozovite

   Odmah opozovite uzbunu opcijom za opoziv na radiju, zatim na kanalu 16 javite svim postajama ime plovila, MMSI i da opozivate lažnu uzbunu, uz vrijeme kad je poslana. Ako brzo opozovete, obično nećete imati problema.[11][22][12][23]

10. Znajte svoj domet

    Domet VHF-a ovisi o visini antene. Ručni radio ili nisko postavljena antena pokrivaju manje područje, a DSC pokrivenost obalne straže razlikuje se od mjesta do mjesta.[4][20]

Nemojte

• Ne pritišćite gumb za pomoć ni zbog čega manjeg od ozbiljne i neposredne opasnosti.[1]
• Ne pokušavajte govoriti na kanalu 70. On je samo za digitalne DSC signale; glasovni pozivi idu na kanal 16.[18]
• Ne šutite nakon lažne uzbune. Opozovite je i javite svima na kanalu 16.[12][22]
• Ne isključujte radio prije opoziva lažne uzbune, osim ako to nalaže priručnik vašeg radija: US Coast Guard upozorava da mnogi radiouređaji nastave slati uzbunu kad se ponovno uključe.[10][17]

Prije isplovljavanja

• Prije isplovljavanja: pribavite MMSI (9-znamenkasti radijski identitet vašeg plovila) od nacionalnog tijela za radiokomunikacije i neka se programira u vaš DSC radio.[15][19]
• Prije isplovljavanja: spojite DSC radio na GPS ili kupite radio s ugrađenim GPS-om.[8]
• Prije isplovljavanja: držite plastificirani tekst poziva MAYDAY pokraj radija.[21]
• Prije isplovljavanja: saznajte gdje je u vašem području dostupna DSC pokrivenost obalne straže.[20][4]

Česta pitanja

Izvori

Izvori su citirani na izvornom jeziku.

1. Maritime and Coastguard Agency (HM Coastguard) (2026-10-14): “Only to be used in the event of grave and imminent danger and assistance is required.”
2. Maritime and Coastguard Agency (HM Coastguard) (2026-10-14): “press and hold the button until the alert is sent”
3. Maritime and Coastguard Agency (HM Coastguard) (2026-10-14): “On receipt of a DSC acknowledgement or after about 15 seconds, transmit the distress call and message on Channel 16”
4. Maritime and Coastguard Agency (HM Coastguard) (2026-10-14): “This area relates to a vessel with an antenna 4m above sea level. Where the antenna is lower or it is a portable radio, the area is smaller.”
5. IMO – Guidance on distress alerts (MSC.1/Circ.1658) (2026-10-14): “LIFT COVER PRESS RED BUTTON until acoustic and light-indication becomes steady (more than 3 seconds)”
6. IMO – Guidance on distress alerts (MSC.1/Circ.1658) (2026-10-14): “POSITION Given as latitude and longitude or If latitude and longitude are not known or if the time is insufficient, in relation to a known geographical location”
7. IMO – Guidance on distress alerts (MSC.1/Circ.1658) (2026-10-14): “Do not forget, your EPIRB is the secondary means of alerting”
8. US Coast Guard Navigation Center (2026-10-14): “DSC distress alerts include position information, but only if the radio has an internal GPS or is connected to a GPS.”
9. US Coast Guard Navigation Center (2026-10-14): “Once the distress alert is transmitted, contact the Coast Guard on VHF channel 16 and communicate your distress information. The Coast Guard will digitally acknowledge your distress alert if you are in VHF range.”
10. US Coast Guard Navigation Center (2026-10-14): “DO NOT power off the radio before cancelling the alert. Otherwise, most radios will continue transmitting the alert once it is powered up again.”
11. US Coast Guard Navigation Center (2026-10-14): “All DSC-equipped radios have a menu selection for cancelling a distress call once distress is activated. Transmit that cancellation. Then notify ships and the Coast Guard of the cancelation, your MMSI and the name of your boat on channel 16”
12. US Coast Guard Navigation Center (2026-10-14): “You won’t get into trouble by accidentally sending a DSC distress alert if you cancel it immediately.”
13. US Coast Guard (Drill Down No. 21: DSC Distress Alerting) (2026-10-14): “If time permits, there are additional menu options for the operator to select and format the distress alert with more information regarding the nature of the distress.”
14. US Coast Guard (Drill Down No. 21: DSC Distress Alerting) (2026-10-14): “Once initiated, a DSC distress alert on VHF will be repeated automatically at intervals of about 4 minutes until it is either acknowledged by another station or stopped manually.”
15. US Coast Guard (Drill Down No. 21: DSC Distress Alerting) (2026-10-14): “The identity of the vessel is by a nine-digit Maritime Mobile Service Identity (MMSI) number issued by the FCC, programmed into the DSC equipment”
16. Transport Canada – Safe Boating Guide (TP 511E) (2026-10-14): “If your VHF radio has Digital Selective Calling (DSC) on channel 70, press the button to send a digital distress call.”
17. Transport Canada – Safe Boating Guide (TP 511E) (2026-10-14): “Follow the specific instructions for canceling DSC distress calls in your DSC owner’s manual. This includes: • switching the unit off and on • select channel 16 • broadcasting the boat name and your MMSI number”
18. Transport Canada – Safe Boating Guide (TP 511E) (2026-10-14): “VHF channel 70 is only used for DSC (digital) communication. Voice communication is not allowed”
19. Transport Canada – Safe Boating Guide (TP 511E) (2026-10-14): “A Maritime Mobile Service Identity (MMSI) is a 9-digit number, that identifies your vessel or boat.”
20. Transport Canada – Safe Boating Guide (TP 511E) (2026-10-14): “VHF/DSC radios can send distress alerts to the Canadian Coast Guard MCTS and nearby vessels to let them know you need help right away. Find out where VHF/DSC service is available”
21. Transport Canada – Safe Boating Guide (TP 511E) (2026-10-14): “It’s also a good idea to keep a laminated script close to your VHF radio.”
22. US Coast Guard Navigation Center (IMO false-alert procedure) (2026-10-14): “switch equipment on and set to Channel 16; and make broadcast to "All Stations" giving the ship's name, call sign and DSC number, and cancel the false distress alert.”
23. US Coast Guard Navigation Center (IMO false-alert procedure) (2026-10-14): “No action will normally be taken against any ship or mariner for reporting and cancelling a false distress alert.”
24. US Coast Guard Navigation Center (2026-10-14): “Stay by the radio if possible. Even after the message has been received, the Coast Guard can find you more quickly if you can transmit a signal on which a rescue boat or aircraft can home.”

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