Kako poslati alarm za stisko DSC

Nazadnje preverjeno: 14. oktober 2026

Korak za korakom

1. Le za resno in neposredno nevarnost

   Alarm za stisko DSC je digitalna oblika klica MAYDAY. Uporabite ga, ko gre za resno in neposredno nevarnost in pomoč potrebujete takoj.[1]

2. Dvignite pokrovček in držite rdeči gumb

   Dvignite pokrovček nad rdečim gumbom DISTRESS ter ga pritisnite in držite, dokler alarm in lučka ne postaneta stalna in je alarm poslan, kar običajno traja več kot 3 sekunde.[5][2][16]

3. Če je čas, dodajte vrsto stiske

   Če imate čas, številni radii omogočajo, da pred pošiljanjem v meniju izberete vrsto nevarnosti. Če časa ni, preprosto pošljite alarm.[13]

4. Preverite, ali je položaj vključen

   Alarm vsebuje vaš položaj le, če ima radio lasten GPS ali je nanj povezan. Če ga nima, morate položaj povedati glasovno.[8][6]

5. Nadaljujte s klicem MAYDAY na kanalu 16

   Ko je alarm potrjen ali po približno 15 sekundah, pokličite na kanalu 16: »MAYDAY, MAYDAY, MAYDAY, this is [ime plovila ×3], [klicni znak], [MMSI]. MAYDAY [ime plovila, klicni znak, MMSI]. Položaj … Vrsta nevarnosti … Potrebna pomoč … Število oseb na krovu … Over.«[3][6][9]

6. Pričakujte potrditev

   Če ste v dosegu, bi morala obalna straža vaš alarm digitalno potrditi. Dokler ni potrjen ali ga ne ustavite, radio alarm samodejno ponavlja na približno 4 minute.[9][14]

7. Ostanite ob radiu

   Ostanite ob radiu in še naprej poslušajte kanal 16. Reševalci vas najdejo hitreje, če ostanete v stiku.[24]

8. Uporabite tudi EPIRB ali PLB

   Če imate EPIRB, je to vaše drugo sredstvo za sprožitev alarma.[7]

9. Ste ga pritisnili pomotoma? Takoj prekličite

   Alarm takoj prekličite z možnostjo preklica na radiu, nato na kanalu 16 vsem postajam sporočite ime plovila, MMSI in da preklicujete lažni alarm, skupaj s časom, ko je bil poslan. Če prekličete hitro, običajno ne boste imeli težav.[11][22][12][23]

10. Poznajte svoj doseg

    Doseg VHF je odvisen od višine antene. Ročni radio ali nizka antena pokrijeta manjše območje, pokritost obalne straže z DSC pa se od kraja do kraja razlikuje.[4][20]

Ne

• Ne pritiskajte gumba za stisko zaradi česarkoli manjšega od resne in neposredne nevarnosti.[1]
• Ne poskušajte govoriti na kanalu 70. Namenjen je le digitalnim signalom DSC; glasovni klici gredo na kanal 16.[18]
• Po lažnem alarmu ne molčite. Prekličite ga in obvestite vse na kanalu 16.[12][22]
• Ne izklapljajte radia, preden prekličete lažni alarm, razen če tako navaja priročnik vašega radia: US Coast Guard opozarja, da mnogi radii po ponovnem vklopu nadaljujejo s pošiljanjem alarma.[10][17]

Pred izplutjem

• Pred izplutjem: pri nacionalnem organu za radiokomunikacije pridobite MMSI (9-mestno radijsko identiteto vašega plovila) in ga dajte vprogramirati v radio DSC.[15][19]
• Pred izplutjem: radio DSC povežite z GPS ali kupite radio z vgrajenim GPS.[8]
• Pred izplutjem: ob radiu imejte plastificirano besedilo klica MAYDAY.[21]
• Pred izplutjem: pozanimajte se, kje na vašem območju je na voljo pokritost obalne straže z DSC.[20][4]

Pogosta vprašanja

Viri

Viri so navedeni v izvirnem 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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