A communications alert that important personal messages must be transmitted

A radio Distress transmission affecting the security of humans or property

Health and welfare traffic which impacts the protection of on-board personnel

A request for medical assistance that does not rise to the level of a Distress or a critical weather transmission higher than Safety

Three oral repetitions of the word “Safety” sent before the call

The words “PAN PAN” spoken three times before the Urgency call

The pronouncement of the word “Mayday

The letters “TTT” transmitted three times by radiotelegraphy

A voice call proceeded by the words “Safety Alert.”

A radiotelephony warning preceded by the words “PAN PAN.”

A communications transmission which indicates that a station is preparing to transmit an important navigation or weather warning

Health and welfare traffic concerning the protection of human life.

Master of ship

An FCC-licensed operator

Person responsible for mobile station

Either Master of ship or person responsible for mobile station

Security

Ship-to-ship routine calls

Distress

Safety

MAYDAY

SAFETY

SECURITE

PAN PAN

Certification is required by the International Maritime Organization (IMO).

Programming of all maritime channels must be performed by a licensed Marine Radio Operator.

Equipment must be type-accepted by the U.S. Coast Guard for maritime mobile use

Only equipment that has been certified by the FCC for Part 80 operations is authorized

Equipment that has been inspected and approved by the U.S. Coast Guard.

Transmitters that have been certified by the manufacturer for maritime use

Unless specifically excepted, only transmitters certified by the Federal Communications Commission for Part 80 operations

Transceivers and transmitters that meet all ITU specifications for use in maritime mobile service.

Aircraft Transceiver with 121.5 MHz

MF-HF SSB Transceiver

Inmarsat-C terminal

Inmarsat-B terminal

Scanning Watch Receiver

GPS

NAVTEX

DSC controller

At least 100 watts (single-sideband) suppressed-carrier power

At least 25 watts delivered into 50 ohms effective resistance when operated with a primary voltage of 13.6 volts DC.

At Least 60 Watts PEP

The power predictably needed to communicate with the nearest public coast station operating on 2182 kHz

250 watts

500 watts

25 watts

100 watts

A radio operator certificate containing a Ship RADAR Endorsement

A Marine Radio Operator Permit or higher

Either a First or Second Class Radiotelegraph certificate or a General Radiotelephone Operator License

No radio operator authorization is required.

When operating on frequencies above 30 MHz allocated exclusively to aeronautical mobile services

When operating on frequencies below 30 MHz not allocated exclusively to aeronautical mobile services

When operating on frequencies above 30 MHz not assigned for international use.

When operating on frequencies below 30 MHz allocated exclusively to aeronautical mobile services

Individuals who are unable to send and receive correctly by telephone spoken messages in English.

Individuals who are unable to send and receive correctly by telephone spoken messages in English

Foreign maritime radio operators unless they are certified by the International Maritime Organization (IMO). D. U.S. Military radio operators who are still on active duty.

Handicapped persons with uncorrected disabilities which affect their ability to perform all duties required of commercial radio operators