1.遇险通信程序distress communication procedure
遇险指船舶或飞机遇到严重和迫切的危险，需要立即援助。遇险通信由Mayday标识，它包括以下内容。
A ship or aircraft is threatened by grave and imminet danger ,and requests immediate assistance. A distress message is marked by Mayday. It consists of the following.
Example:
Mayday! Mayday! Mayday!
THIS IS "BIRTE" "BIRTE""BIRTE".
MAYDAY
THIS IS TWO-ONE-ONE-TWO-THREE-NINE-SIX-EIGHT-ZERO.
MOTOR VESSEL "BIRTE" CALL SIGN DELTA ALPHA MIKE KILO.
POSITION SIX TWO DEGREES ONE ONE DECIMAL EIGHT MINUTES NORTH ZERO ZERO SEVEN DEGREES FOUR FOUR MINUTES EAST.
I AM ON FIRE AFTER EXPLOSION. I REQUIRE FIRE FIGHTING ASSISTANCE. SMOKE NOT TOXIC.OVER.
收到遇险信息：Mayday received:
Mayday!
"BIRTE" "BIRTE""BIRTE"
This is “**”“**”“**”
Mayday received. Over.
注意：遇险通信应在VHF16频道上优先进行，进行遇险通信时，不允许任何电台发送与遇险情况无关的报文。
如果需要标准航海通信用语更全面、更详细的内容，关注微信公众号“航海界”，后台回复“航海用语”，获得标准航海通信用语（中英文）的学习资料，里面包含了标准用语的全部文字内容以及相关的标准发音，欢迎大家领取学习，进一步提高标准航海通信用语水平。
2.紧急通信程序 Urgency communication procedure
紧急指有关船舶、飞机、其他运载工具或者个人的安全方面需要发送得十分紧急的报文。紧急通信由Pan-Pan 标识，它包括以下内容。
The station sending it has a very urgent message to transmit concerning the safety of a ship, aircraft or other vehicle, or the safety of a person. An urgency message is marked by Pan-Pan .
EX:
PAN PAN PAN PAN PAN PAN
THIS IS "BIRTE""BIRTE""BIRTE"
PAN PAN
THIS IS TWO-ONE-ONE-TWO-THREE-NINE-SIX-EIGHT-ZERO
MOTORVESSEL "BIRTE" CALL SIGN DELTA ALPHA MIKE KILO
POSITIONSIX TWO DEGREES ONE ONE DECIMAL EIGHT MINUTES NORTH ZERO ZERO SEVEN DEGREES FOUR FOUR MINUTES EAST.
I HAVE PROBLEMS WITH ENGINES
I REQUIRE TUG ASSISTANCE.OUT
3.安全通信程序 Safety communication procedure
安全报文指需发送的内容重要的航行警告和气象警告。安全通信由Securite标识，通信程序与广播程序相同。
The station sending it has a message to transmit containing an important navigational or meteorological warning . A safety message is marked by Securite. Its communication procedure is the same as a broadcast procedure.
Example:
SECURITE SECURITE SECURITE
ALL SHIPS ALL SHIPS ALL SHIPS IN AREA PETER REEF
THIS IS TWO-ONE-ONE-TWO-THREE-NINE-SIX-EIGHT-ZERO
MOTORVESSEL "BIRTE" CALL SIGN DELTA ALPHA MIKE KILO
DANGEROUS WRECK LOCATED IN POSITION TWO NAUTICAL MILES SOUTH OF PETER REEF.
OUT.
