The JRC JSS-2150 is a 150 W MF/HF GMDSS radiotelephone with integrated DSC controller and external antenna tuner — the standard long-range radio for sea areas A2 and A3. A reconditioned unit should ship with TX output tested at full PEP across all maritime bands, DSC watch receiver verified on 2,187.5 kHz, and IMO A.806(19) type-approval intact.
Yes — paired with Inmarsat-C, the JSS-2150 satisfies the long-range radio requirement for GMDSS sea areas A2 and A3.
Yes — the antenna tuner is part of the standard package and ships with the reconditioned radio. Confirm at quote stage if your installation uses a non-standard tuner.