Seanav Marine
VHF & MF/HF Specialists Dealer Lock Removal MMSI & Channel Setup 24/7 Port Attendance

Marine Radio Programming, VHF DSC & MF/HF Reprogramming in India

Seanav Marine provides specialized programming, frequency configuration, MMSI updating, and RF troubleshooting for marine VHF and MF/HF communication systems across India.

⚓ Official Operational Scope & National Capabilities

Seanav Marine provides certified marine radio programming, reprogramming, and MMSI configuration across all Indian ports. We service fixed VHF DSC radios, MF/HF SSB transceivers, and handheld survival craft radios from Sailor/Cobham, Furuno, JRC, ICOM, and Standard Horizon. Our technicians unlock locked dealer EEPROMs, program private coastal channels, update MMSIs after flag changes, and verify RF transmit spectrum integrity.

⚙️ Technical Specifications & Operational Coverage

Equipment Programmed Fixed VHF DSC Radios, MF/HF SSB Transceivers with DSC & NBDP, Handheld GMDSS Radios, Two-Way Radios (UHF/VHF)
Supported Brands Sailor / Cobham (6222, 6215, 6300 series), Furuno (FM-8800, FM-8900S, FS-1570, FS-2575), JRC (JHS-770S, JHS-800S, JSB-196GM), ICOM (IC-M506, IC-M605)
Programming Scopes MMSI Reset & Reprogramming, ATIS Programming, Private Shipping Channel Allocation, DSC Group Call Setup, Transmit Power Calibration
Attendance SLA 2 to 4 hours to any Indian port berth; same-day outer anchorage deployment
Compliance Standard SOLAS Chapter IV, ITU Radio Regulations, DGS WPC Mobile Licensing Standards

🏷️ Supported OEM Brands & Equipment

Our engineers are equipped with manufacturer diagnostic keys, test software, and genuine spare parts for leading bridge electronics manufacturers:

Furuno Radars, AIS FA-170, FMD ECDIS, VR-7000 VDR
JRC JMR-9200, JHS-183 AIS, JAN-9201, JCY-1900
Sailor / Cobham 6000 GMDSS, 6222 VHF, 6300 MF/HF
Tokyo Keiki TG-8000 Gyro, PR-9000 Autopilot
Sperry Marine VisionMaster FT, Navigat 100/200
Yokogawa CMZ-900 Gyro Compass
Raytheon Anschütz Synapsis ECDIS, Standard 22 Gyro
Danelec Marine DM100 VDR & S-VDR, DM800 ECDIS
Jotron Tron 40S / 60S 406 MHz EPIRB, SART
Samyung ENC AIS SI-30, VHF STR-6000A, EPIRB

📋 Marine Radio Reprogramming & DSC Verification Protocol

  1. Radio Station License Verification

    Inspect vessel radio license to confirm authorized MMSI, call sign, and ITU channel authorization.

  2. Master Dealer Code Entry / Hardware Jumper Unlock

    Access service mode via dealer software or internal circuit board jumper configuration to unlock MMSI register.

  3. Parameter Programming & Frequency Calibration

    Enter new 9-digit MMSI, program authorized private or channel sets, and adjust TCXO frequency oscillator.

  4. RF Power & DSC Loopback Test Call

    Measure RF output (25W high / 1W low), measure reflected power, and conduct live DSC call to Indian Coast Radio Station.

🔍 Frequent Marine Radio Programming Issues

Reported Defect Root Cause Diagnosis Technical Remediation
Sailor 6222 Displays "MMSI LOCKED" Radio design strictly locks MMSI once entered; ship staff cannot modify it via front panel. Application of Sailor service software via LAN maintenance interface to reset EEPROM.
VHF DSC Test Fails with Indian Coast Station Receiver RF front-end sensitivity lost due to nearby radar pulse saturation or lightning surge. Front-end RF amplifier transistor renewal and receiver sensitivity re-alignment.
Verified Indian Port Attendance Case Study

Emergency VHF DSC MMSI Reset on Tanker Calling Hazira Port

Vessel Type 19,000 DWT Chemical Tanker
Equipment Scoped Furuno FM-8900S VHF DSC Radio (x2)
Port & Berth Adani Hazira Port, Gujarat

Reported Problem: Vessel underwent name change and flag change; local surveyor refused to sign cargo safety certificate because both VHF radios broadcast old MMSI.

Technical Diagnosis: Both units locked in user mode; internal service jumper and software flash required.

Corrective Attendance: Dispatched engineer to Adani Hazira Port. Unlocked FM-8900S service menu, entered new MMSI, verified DSC call to Hazira Port Control on Ch 70, and verified RF power at 24.8 Watts.

✓ Operational Outcome: Both radios reprogrammed within 90 minutes. Surveyor cleared vessel for cargo loading without delay.

🌐 Strategic Indian Port & Equipment Authorities

Explore specialized technical resources and 24/7 engineer coverage across key Indian shipping hubs:

🛡️ Verified Maritime Technical Authority Technical Review: October 2026

Reviewed & Certified by Technical Operations Directorate

Lead Marine Electronics Surveyor & Technical Director · Seanav Marine Pvt Ltd

Master technical oversight for SOLAS Chapter IV & V navigational safety and radio communications. Certified in statutory marine radio surveys, gyro compass meridian calibrations, radar transceiver overhauls, and VDR APT protocols across 170+ commercial Indian ports and anchorages.

📜 DG Shipping / WPC Maritime Radio General Operator (GOC) 🧭 MCA Approved Magnetic Compass Adjuster 📋 SOLAS Chapter IV & V Statutory Compliance Lead 🔧 OEM Factory-Trained Engineers (Furuno, JRC, Sperry, Tokyo Keiki, Danelec)

❓ Frequently Asked Questions

No. Both manufacturers deliberately restrict MMSI re-entry to authorized service technicians equipped with proprietary dealer software keys.

Yes. We program authorized private VHF simplex and semi-duplex channels in accordance with the vessel’s WPC license.