Alta tensione
Warning regarding electrical systems or cables carrying dangerous voltage levels, requiring safety precautions.
View termCategories
External Communication
Browse External Communication terms for maritime professionals.
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Ancora ara
Situation where a vessel’s anchor fails to hold and the vessel moves from its intended position, risking collision or grounding.
View termAncora arrezza
Situation where a vessel’s anchor does not hold, causing the ship to drift from its intended position.
View termAnnulla avviso
Official notification that a previously issued warning is no longer in effect.
View termAnnulla avviso
Formal message to withdraw or annul a previously issued navigational, meteorological, or safety warning that is no longer in effect.
View termAnnulla messaggio
Official notification that a previously transmitted message or warning is no longer valid or has been withdrawn.
View termAnnullare allarme
Official transmission that a previous distress message is no longer valid, usually after the situation has been resolved.
View termArea di pericolo
A specified maritime zone where navigation is hazardous due to military exercises, wrecks, shallow waters, or other dangers requiring special attention or restricted entry.
View termAumenti la velocità
Instruction to make more way through the water to meet traffic, tidal, or berth scheduling requirements.
View termAvaria motore
A condition in which a vessel’s propulsion machinery is malfunctioning or unreliable, possibly affecting speed and manoeuvrability.
View termAvvisare il pilota
Request for instructions, information, or confirmation from the maritime pilot regarding navigation or maneuvers.
View termAvviso ai naviganti
A formal broadcast or message informing mariners of navigational hazards, new obstructions, or significant changes in channels, aids to navigation, or regulations.
View termAvviso di navigazione
Official broadcast of hazards, obstructions, or operational restrictions that may affect safe navigation.
View termAvviso radiodiffuso
A formal message disseminated by VTS, harbour authority, or vessels to alert all ships in an area about navigational hazards, operations, or urgent situations.
View termBoa spenta
A navigation buoy whose light is inoperative or not functioning, presenting a hazard at night.
View termBollettino meteorologico
Official broadcast of weather conditions, warnings, and forecasts relevant to maritime navigation.
View termCambi canale
Instruction to switch VHF radio communications from one designated channel to another for operational or traffic management reasons.
View termCanale di guardia
A designated VHF radio frequency used for emergency, distress, or mandatory communication monitoring.
View termCanale occupato
Notification that the selected VHF working channel is congested with traffic, making immediate communication difficult.
View termCanale occupato
Notification that a fairway or navigation channel is temporarily blocked or being used by another vessel, requiring others to wait or take alternate route.
View termCanale sedici
The international VHF radio distress, safety, and calling channel (156.8 MHz) monitored at all times by ships and shore stations.
View termCanale sedici
The international VHF radio distress, safety, and calling frequency (156.8 MHz) mandatory for all seagoing vessels to monitor continuously.
View termCarico pericoloso
Any substance or material that poses a significant risk to health, safety, or property during transport by sea, as defined by IMDG Code.
View termComunichi le sue intenzioni
Request for a vessel to state its planned manoeuvre, course, or operational actions to aid traffic coordination.
View termConferma posizione
Instruction to confirm that a vessel’s reported navigational position has been received and understood.
View termConfermare posizione
Request or instruction to verify and report the current location of a vessel, typically in latitude and longitude.
View termConfermare rilevamento
Instruction to verify and report the direction of an object or navigational aid from the vessel, usually in degrees relative to the ship's heading or true north.
View termConfermare rotta
A request or instruction to verify and state the vessel’s current or intended navigational course, usually in degrees true or magnetic, for navigational safety.
View termConfermo ricezione di emergenza
Formal confirmation of receipt of a distress message, typically using prescribed wording as per SMCP and ITU RR.
View termConfermo ricezione messaggio
Formal confirmation of receipt of a transmitted communication, usually by repeating essential content.
View termContinuare ad ascoltare
Instruction to keep monitoring a specified VHF radio channel or other communication line for further traffic or safety messages.
View termControlla la correttezza
Instruction to verify the accuracy of a reported position, course, message, or navigational information before proceeding or acknowledging receipt.
View termControlla la distanza
Instruction or query to verify the distance to a navigational object, other vessel, or danger, often using radar or visual bearings.
View termControlla la posizione
Instruction or request to verify the vessel's current navigational position using all available means, including GPS, radar, and visual bearings, to ensure safe passage.
View termCoordinate confermate
Affirmation that the provided position or waypoint coordinates are checked and verified as correct, usually before reporting to VTS or executing a navigational order.
View termCorrispondenza pubblica
Telecommunications service on board for the exchange of messages between ship and shore for public or commercial use.
View termDare precedenza
An instruction for a vessel to yield in order to avoid collision and allow another vessel to pass as per the COLREGS.
View termElica impigliata
A condition where the propeller is entangled with ropes, nets, or debris, affecting maneuverability.
View termEsercitazioni di tiro
Planned military or naval operations in which weapons are fired in designated sea areas, usually requiring ships to keep clear.
View termEsercitazioni scialuppe di salvataggio
Regular training exercises involving the launching and operation of lifeboats as per SOLAS requirements.
View termETA aggiornata
Notification that a vessel’s previously declared estimated time of arrival has changed and updated information is provided.
View termETA confermata
Formal confirmation that a vessel’s estimated time of arrival is correct and accepted by both reporting vessel and authority.
View termETA confermata
Affirmation that the vessel's estimated time of arrival at a specific point has been checked and is accurate based on current speed and conditions.
View termETA invariato
Confirmation that the vessel’s estimated time of arrival remains as previously reported.
View termGiro non affidabile
A warning that the vessel’s gyrocompass cannot be trusted for accurate heading information.
View termGuardia d’ascolto
Continuous monitoring of a specified VHF or radio frequency for traffic, safety, or distress calls.
View termGuardia radio
Continuous monitoring of a designated VHF or MF/HF radio channel for traffic, safety, or distress messages, as required by IMO and ITU regulations.
View termImbarco pilota
Designated process and location where a maritime pilot embarks or disembarks from a vessel.
View termImmettersi nel canale
Instruction to enter and follow a designated fairway or channel for safe navigation as directed by VTS or port authority.
View termIn ingresso
Statement or report that a vessel is moving towards a port or entering a specific area.
View termInquinamento da olio
Presence or discharge of oil into marine waters from a vessel or facility, constituting a reportable incident and requiring emergency action as per MARPOL and local rules.
View termIntendo sorpassare
Announcement that a vessel plans to pass another vessel ahead on a specified side in accordance with the COLREGS.
View termInterferenza magnetica
Disruption or deviation of magnetic compass readings due to local magnetic fields, ship’s structure, or electrical equipment, requiring verification and correction.
View termInterferenze frequenti
Repeated radio noise or overlapping transmissions that degrade VHF communication quality on the working channel.
View termJamming rilevato
Notification that radio communication is being interfered with by intentional or unintentional signal jamming.
View termManeggio cavi
The operation of preparing, passing, securing, and tending mooring lines to assist in berthing or unberthing a vessel.
View termMantieni la posizione
Instruction to maintain current position, either at anchor or underway, until further orders are received.
View termMayday Relay
A distress message transmitted by a vessel or station on behalf of another vessel, aircraft, or person in grave and imminent danger when the original station is unable to send it.
View termModificare rotta
Instruction to change the vessel’s current heading in order to avoid danger or comply with traffic management.
View termMuovere indietro
Order or report indicating the vessel is moving, or must move, backward relative to its heading.
View termNave seguente
A vessel which is navigating behind another in the same direction, often in a convoy or traffic lane.
View termNessuna autorizzazione
Notification that the vessel does not have authorization or permission to enter, leave, or transit a specific area, port, or anchorage.
View termNessuna risposta
Phrase used to indicate that a called station has not replied within a reasonable time, requiring repeat or escalation of the call as per radio protocols.
View termNumero persone
Total count of persons (crew and passengers) on board, often requested for safety or SAR purposes.
View termOperazione completata
Notification that a particular port, cargo, or navigational operation has been fully finished.
View termOperazioni di ormeggio
All procedures related to securing or unmooring a vessel to or from a berth, buoy, or anchorage.
View termOstacolo segnalato
Notification that a hazard, such as a floating object or wreck, is present and may endanger navigation.
View termOstacolo segnalato
Notification that a physical hazard, such as a wreck, buoy, or floating object, has been observed in a navigable area, requiring mariners to exercise caution.
View termPan Pan
A radiotelephony urgency signal indicating a situation urgent but not immediately life-threatening; always spoken in English.
View termPerdita di propulsione
Loss of ability to propel the vessel due to engine failure or other mechanical issues.
View termPescaggio richiesto
Request or statement of the minimum water depth needed for safe passage of a vessel based on its loaded draft.
View termPlancia in ascolto
Notification that the navigating bridge watch is monitoring the working channel and ready to respond immediately.
View termPosizione di emergenza
Location reported by a vessel or person in distress, usually in latitude and longitude for rescue coordination.
View termPosizione dubbia
Phrase used to indicate that the vessel's current navigational position cannot be reliably confirmed and may be inaccurate, requiring urgent verification.
View termPosizione superata
Notification that a vessel has just crossed or gone abeam of a specified position, buoy, or waypoint.
View termRicerca a quadranti
A systematic search pattern, typically used in SAR operations, covering four quadrants from a datum point to locate persons or objects.
View termRimanere in ascolto
Instruction to maintain a listening watch on a specified VHF channel for further communication or safety messages.
View termRiprenda la navigazione
Order authorising a vessel to continue its original voyage after a temporary stop, alteration, or holding pattern.
View termRischio di collisione
Phrase indicating that two or more vessels are on courses or at speeds that may result in collision unless action is taken according to COLREGS.
View termRischio di incaglio
Potential danger of the vessel running aground due to shallow water or navigational error.
View termRotta invariata
A statement or confirmation that a vessel’s present heading will not be altered.
View termRotta invariata
Statement indicating that the vessel’s heading remains as previously instructed or reported.
View termSegnalare danni
Instruction to inform relevant authorities or stations of any structural, mechanical, or environmental damage sustained, with details for emergency response or investigation.
View termSegnalare incendio
A prompt or instruction to immediately communicate the occurrence, location, and extent of a fire on board or ashore, using standard emergency procedures.
View termSegnalare traffico
Request for current information about vessel traffic, movement, or congestion in a specific area.
View termSilenzio radio
A formal order requiring all stations to cease transmitting on a frequency, usually for distress or security reasons.
View termStare alla larga
Instruction to remain at a safe distance from a specified vessel, area, or hazard.
View termStare alla larga
Instruction to maintain a safe distance from a specified vessel, area, or hazard to prevent collision, obstruction, or risk during navigation or operations.
View termStazione costiera
A shore-based VHF or radio station responsible for maritime safety and communication in a designated coastal area.
View termSul posto
Statement indicating that the vessel, aircraft, or rescue unit has arrived at the position of an incident or casualty.
View termTest di comunicazione
A check of the operational status and clarity of shipboard, shore, or VTS radio equipment by transmitting test calls and receiving acknowledgments.
View termTraffico d'emergenza
Radio messages of high urgency concerning the safety of a ship, person, or environment, requiring priority over all other communications except distress.
View termTraffico di soccorso
Radio transmissions exclusively concerning vessels or persons in grave and imminent danger, given absolute priority on all frequencies as per ITU and SOLAS regulations.
View termTraffico intenso
A situation or area where a high density of vessels requires heightened vigilance, reduced speed, and strict adherence to COLREGS and local traffic rules.
View termTraffico locale
Vessels operating within a port, harbour, or defined coastal area, often with priority rules or reporting obligations for navigation safety.
View termTraffico portuale
Collective term for the movement of vessels and craft within port limits as monitored by VTS or Harbour Master.
View termTrasferimento in elicottero
Operation involving the embarkation or disembarkation of personnel or cargo by helicopter to or from a vessel, requiring special procedures and communications.
View termTrasmissione di sicurezza
Official VHF or NAVTEX message to all ships concerning safety-related information or urgent warnings.
View termTrasmissione informativa
A general transmission on VHF or NAVTEX to inform vessels about safety, weather, traffic or other operational matters.
View termTutte le stazioni
Universal radio call addressing every vessel or station within radio range, especially for navigational warnings or urgent messages.
View termUnirsi al convoglio
Instruction or request for a vessel to assemble and proceed as part of an organized convoy for mutual safety, security, or navigation, under VTS or naval coordination.
View termUnità di scorta
A vessel assigned to accompany another ship for navigational assistance, safety, security, or regulatory compliance in ports, coastal, or hazardous waters.
View termUomo in mare
Emergency indicating that a person has fallen from a vessel into the water and immediate rescue actions are required.
View termZona di pericolo
A specific zone designated as hazardous to navigation due to wrecks, shoals, operations, or other maritime risks; mariners are instructed to avoid entry.
View term