The vessel VMS unit is a sealed unit which has own GPS inside to ensure the independence from other acoustic devices and protected with official seals that indicate whether the unit has been accessed or tampered.
Sat C Furuno Felcom 15 serial number :3533-6232 IMN:4601000058
Sat C Furuno Felcom 15 serial number :3533-6232 IMN:4601000059
Sat C Thrane & Thrane TT3026L ISN:4TT0879BA55E IMN:496550613
Sat C Thrane & Thrane TT3026L ISN:4TT097439263 INM:460100252