The Furuno FELCOM 15 is a three-box Inmarsat-C system (antenna, transceiver, message terminal). Identify the failed box before ordering — they are not interchangeable. A like-for-like reconditioned FELCOM 15 is usually less than half new-system cost; vessels adding LRIT or SSAS should upgrade to the FELCOM 19 mini-C class 2 instead.
Yes — the FELCOM 19 is a like-for-like physical upgrade that also adds LRIT and SSAS reporting in a compact antenna with integrated GPS. Cable runs are usually re-usable; confirm at quote stage.
Yes, when IMO MSC.434(98) / IEC 61097-4 type-approval is intact and distress alert and EGC SafetyNET reception are tested end-to-end.