Deck/Nautical Equipment/372511 SATELLITE EPIRB, 406MHZ/121.5MHZ

Transmitting a distress alert either through the polar orbiting satellite service, operating in the 406 MHz band, or through the INMARSAT geostationary satellite service operating in the 1.6 GHz band.  The unit will also float free if the ship sinks and will be automatically activated when afloat or activated manually in emergency.  The EPIRB mentioned here is operated on 406 MHz and 121.5 MHz by the COSPAS/SARSAT satellite system which is adopted widely to the ships in the early stage of the introduction of the GMDSS.  This type of EPIRB will broadcast on 406 MHz to be received by the COSPAS/SARSAT satellite and on 121.5 MHz to be used for homing by search-and-rescue vessels along with a strobe to pinpoint exact location.  It is required, when ordering, to specify the ship’s registered flag, call sign, etc. to be programmed into the EPIRB as a rescue signal by the manufacturer before delivery.

通过在406兆赫频段运行的极轨卫星服务或在1.6 GHz频段运行的国际海事卫星组织地球同步卫星服务发送遇险警报。如果船下沉，该装置也将自由漂浮，并在漂浮时自动激活，或在紧急情况下手动激活。本文所述的应急无线电示位标是由COSPAS/SARSAT卫星系统在406兆赫兹和121.5兆赫频率上操作的，该卫星系统在引入全球导航卫星系统的早期阶段被广泛应用于船舶上。这类应急无线电示位标将在406兆赫兹上广播，由COSPAS/SARSAT卫星接收，在121.5兆赫上广播，供搜救船导航，并配有一个闪光灯，以精确定位。订购时，制造商要求在交货前将船舶的注册旗帜、呼号等编入EPIRB中作为救援信号。