We have MOBs inside and PLBs attached to all our spinlock vests. Additionally we have their AIS alarm
installed at the nav desk.
We test them annually and have never had any issues. When the MOB
is activated, we get a mark and alarm
on our B&G
plotter, a mark and alarm on the Vesper Cortex handhelds, DSC
alarms on all the radios, and the AIS