AU9 MOB Alert Unit/Personal Locator Beacon (LIVE 121.5 MHz 100mW). When a person wearing a AU9 Personal Alert Unit (also called Personal Locator Beacon - PLB) falls overboard, a Base Unit can pick up its signal and automatically activate a MOB alarm whilst simultaneously plotting the position of the vessel using an on-board NMEA connected GPS unit. The Base Unit will show direction and range to the missing person which enables crew to easily steer back to the MOB location and track, find and recover the missing person(s).

• 121.5Mhz transmit frequency
• 100mW transmit power
• 5 second auto-activation (upon continuous immersion) or manual activation
• LED strobe on antenna
• Automatic low battery warning indicator
• 500mW power output version optionally available
• Approvals – CE, FCC-YFGAU9
• User replaceable battery (PLB)
• Range: 2-3 miles from a ship/jetty/platform to a drifting person, 15-17 miles to an aircraft/helicopter at 1,000ft, 35 miles or more to an aircraft at high altitude (depending on antenna height and life-jacket PLB fitting)