Marine Communication & Satcom: MF/HF DSC, VHF, Inmarsat-C, VSAT & Starlink India
Seanav Marine provides complete marine radio communication and satellite terminal supply, installation, and repair across all 170+ Indian ports and anchorages. Specializing in MF/HF DSC, Class A VHF, Inmarsat-C, FleetBroadband, maritime VSAT, and Starlink Maritime terminals, our certified radio engineers resolve RF transmission dropouts, program MMSI and call signs under WPC guidelines, and conduct annual battery load endurance testing.
Supported OEM Equipment & Multi-Make Coverage
Send the equipment make and model so we can confirm the scope and parts availability.
Technical Specifications & Operational Coverage
| Systems Covered | MF/HF DSC (150W/250W/500W), Fixed VHF/DSC, Portable GMDSS VHF, Inmarsat-C, FBB, VSAT, Starlink Maritime |
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| GMDSS Sea Areas | Full Sea Area A1, A2, A3, and A4 statutory bridge configurations and duplicate station setups |
| Satellite Transceivers | Inmarsat-C (Thrane & Thrane / Sailor 6110, Furuno FELCOM-18), JRC (JUE-87), Cobham Sailor 4300 Iridium Certus |
| High-Speed Satcom | Starlink Maritime dual high-performance flat phased array antenna integration with failover routing |
| WPC Regulatory Scope | Maritime Mobile Station licensing, Import clear certificates (WPC Wing), MMSI reprogramming audits |
| Attendance SLA | Within 2 hours at JNPT/Mumbai berth; 24/7 fly-away attendance across all Indian major and minor ports |
Standard 5-Step GMDSS & Satcom Transmission Health Protocol
Our Class-approved technicians execute this standardized procedural workflow to ensure first-time compliance with attending Class surveyors and Indian Port State Control (PSC) inspectors:
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Antenna Feeder & RF Power Forward/Reflected Check
Measure VHF and MF/HF RF output wattage, verify VSWR below 1.5:1, and inspect antenna insulator porcelain for salt-crust leakage.
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DSC Automated Distress & Safety Calling Verification
Perform routine and safety DSC test calls to Indian Coast Stations on 2187.5 kHz and VHF Ch 70; check automatic printer receipts.
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Satellite Terminal EGC & Distress Loopback Test
Audit Inmarsat-C transceiver signal-to-noise ratio; verify Enhanced Group Call (EGC) Metarea safety broadcast logging.
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Starlink Maritime Dual-Dish WAN Router Balancing Audit
Verify phased-array dome power supplies, configure VLAN bandwidth controls for crew/bridge traffic, and test automatic 4G failover.
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Radio Station License (WPC) Audit & SBM Certificate Issuance
Verify equipment serials against Indian WPC license; issue Class-approved Shore-Based Maintenance (SBM) contract certificate.
24/7 Port & Anchorage Attendance Across India
Seanav Marine provides rapid shore-based and offshore launch boat boarding across all 170+ Major and Minor Indian Ports, including:
Certified Equipment & Replacement Spares in Stock
Seanav Marine maintains bonded warehouse spare parts inventory across major Indian ports for immediate dispatch and installation during port calls:
Download Master's GMDSS Annual Radio Survey Prep Guide
Comprehensive statutory inspection checklist for MF/HF DSC, VHF, EPIRB, SART, and GMDSS battery reserves.