Marine GMDSS gear by SAILORSAILOR CH4656 24V/10A battery chargers and SAILOR 6390 Navtex receivers with the 6004 display — genuine Thrane&Thrane Cobham gear. The 6390 kit ships with Russian RS and RMRS certificates.

GMDSS (Global Maritime Distress and Safety System) is the global maritime distress and safety communication system, mandatory for all SOLAS vessels. Without a working GMDSS kit, a ship is not cleared to sail and class is not confirmed. SAILOR equipment from Thrane&Thrane (now part of Cobham SATCOM) is one of the two world leaders in GMDSS solutions along with JRC, approved by every major classification society, including RMRS and RKO.

SAILOR 6390 Navtex receiver (black-box with LAN interface), SAILOR 6004 Control Panel display (7-inch touch screen) and Navtex antenna. Original RKO and RMRS certificates are included — the equipment can be installed on a Russian-flag vessel and certified without additional approvals.

All three are one Thrane&Thrane series. CH4656 is the 24 V / 10 A version (our variant). CH4666 is a more powerful 24 V version (about 16 A); CH2410 is a compact 12 V. CH4656 runs on 230 V AC and delivers up to 10 A continuously, with four independent fused DC outputs. That's enough to back-feed marine radio systems, including the emergency GMDSS stack in a UPS configuration.

Yes — and that's its main advantage. CH4656 is one of the most compact chargers in the SAILOR lineup (5 kg, 110×370×260 mm), rated for 20–120 Ah batteries. A good fit for workboats, fishing vessels, large yachts, river and coastal ships that don't need full CH4666 power but require reliable certified charging for lead-acid batteries (flooded or sealed). Fully marine-grade: IEC 945, IP22, compass safe distance 1.4 m.

RMRS (Russian Maritime Register of Shipping) and RKO (Russian Classification Society) are the leading Russian classification societies. RMRS is recognized by IMO and IACS and classifies seagoing vessels; RKO handles river and mixed-navigation vessels. Equipment with their certificates can be fitted to Russian-flag ships without additional approvals, and the vessel can obtain a certificate of seaworthiness. Without such certificates, a Navtex receiver formally does not exist for an RMRS inspector, and the ship won't pass class survey.

Yes. SAILOR 6390 is designed as a black-box and can run standalone, feeding Navtex messages to any Integrated Navigation System (INS) via NMEA0183. The receiver has its own alarm relay and USB for message export. But the 6004 display makes crew work much easier — 7-inch touch screen, sorting by stations and types, history of 6,000 messages. That's why it ships in the kit.

Three international Navtex frequencies simultaneously: 518 kHz (international English, mandatory global standard), 490 kHz (national language of the coastal state), 4,209.5 kHz (tropical and distant waters). All three are received in parallel. Memory — 2,000 messages per frequency (6,000 total). The receiver stays in receive mode while powered.

Several CH4656 chargers and one SAILOR 6390 Navtex kit (receiver + 6004 display + antenna) with RKO/RMRS certificates are in stock. Courier delivery across Russia and Kazakhstan within 1 business day after e-mail order confirmation. We recommend reserving — the certified kit is a single unit.

Via e-mail to office@omegacharge.ru. This website provides reference information and does not collect personal data. All enquiries are sent directly from your email client to our email address. It complies with the Personal Data law. We reply during the working day.