24/7 Port Support Active
+91 2836 – 237692 / 230549
Ashapura Marinetech
Ashapura Marinetech Commercial Container Vessel at Sea
DG Shipping Approved Service Station • ISO 9001:2015

Delivering Excellence in Every Voyage

Fast, certified, and cost-effective marine electronics, communication & navigation solutions tailored to your fleet. Trusted by leading global shipowners at all major and minor Indian ports since 1996.

Explore Services
Magnetic Compass & Radar
Watch Operations

Magnetic Compass Adjuster & Gyro Calibration

Approved for all Indian ports & ISO/IMO standards

Port Attendance Active
24/7 Ops
Vessel Ops

GMDSS & VDR APT Rapid Response

Direct attendance at Gandhidham, Mumbai, Vizag & Paradip

Our Specialized Expertise

Comprehensive Marine Services

Marine Navigation, RADAR & ECDIS
All Major Ports
X & S-Band Navigation

RADAR, ECDIS & Chart Plotters

Comprehensive repair, magnetron replacement, display tuning, and sensor interfacing for X & S Band RADAR, ECDIS, GPS & Chart plotters, and Course Recorders.

RADAR ECDIS GPS Plotter Course Recorder
DG Approved Lab
Gyrocompass Systems & Overhauls
Annual Overhaul Lab
Heading Reference

Gyrocompass Overhaul & Calibration

Master gyro annual overhauls, sphere & fluid replacement, sensitive element maintenance, step/synchro repeater alignment, and bridge heading distribution.

Master Gyro Repeaters Sensitive Sphere Anschütz/Sperry
24/7 Port Techs
Magnetic Compass Adjuster
Qualified Adjusters
IMO & ISO 25862 Compliant

Magnetic Compass Adjustment

Certified magnetic compass adjusters available across all Indian ports & anchorages for compass swings, hard/soft iron deviation correction, and official deviation cards.

Compass Swings Deviation Cards Hard & Soft Iron Port & Anchorage
Flag & Class Approved
GMDSS Radio Surveys & Certification
IACS Class Approved
Safety Radio Surveys

GMDSS Radio Surveys & Certification

Authorized radio surveys for DNV, LR, ABS, BV, ClassNK, IRS & DG Shipping. Fast attendance for annual, renewal, and periodical Cargo Ship Safety Radio Certificates.

DNV • LR • ABS ClassNK • IRS DG Shipping Safety Radio
Rapid Port Response
VDR & S-VDR Annual Performance Tests (APTs)
Class Approved APTs
Voyage Data Recorders

VDR & S-VDR Annual APTs

Certified Annual Performance Testing (APT) for VDR and S-VDR systems. Acoustic beacon checks, float-free capsule inspection, battery testing, and classification endorsements.

Netwave AMI Marine Headway Acoustic Beacons
Certificate Endorsement
Satellite Communication & Fleet Broadband
Inmarsat & FBB Ready
SATCOM Terminals

Satellite Comms & Fleet Broadband

Inmarsat-C, Fleet Broadband (FBB), Ship Security Alert System (SSAS), and satellite communication terminal installation, testing, antenna alignment, and DG Shipping certification.

Inmarsat-C Fleet Broadband SSAS Sat Terminals
Global Connectivity
MF/HF, VHF DSC & 2-Way Handhelds
GMDSS A1-A4 Area
Marine Transceivers

MF/HF, VHF DSC & 2-Way Handhelds

Troubleshooting, repair, and RF calibration for MF, HF, NBDP, VHF & DSC transceivers, antenna tuners, and ATEX intrinsically safe 2-way handheld radios (walkie-talkies).

MF/HF DSC VHF DSC NBDP Telex ATEX Radios
DG Shipping Certified
Echo Sounder & Speed Log Systems
Acoustic Transducers
Hydrographic Sensors

Echo Sounder & Speed Log Systems

Transducer diagnostic benches, transceiver PCB repair, shallow-water alarm testing, and Doppler / electromagnetic speed log sensor overhauls and water-track calibration.

Echo Sounder Fish Finder EM Speed Log Doppler Transducer
Drydock & Berth Support
Autopilot & Steering Control
Precision Course Control
Steering & Heading

Autopilot & Steering Control

Heading control systems, PID rudder response tuning, rudder feedback angle sensors, gyro repeater tracking, and sea-trial commissioning for all vessel categories.

Autopilot Rudder Feedback PID Tuning Steering Stands
Sea-Trial Ready
EPIRB, SART & AIS Transponders
Safety & Distress
SOLAS Compliance

EPIRB, SART & AIS Transponders

Annual testing, programming, and battery replacement for 406 MHz EPIRBs, Search and Rescue Transponders (Radar & AIS SART), Class A/B AIS transponders, and Hydrostatic Release Units (HRU).

EPIRB 406MHz Radar/AIS SART AIS Class A HRU Release
Emergency Attendance
Weather Station, NAVTEX & BNWAS
Bridge Watch & Weather
Meteorological Instruments

Weather Station, NAVTEX & BNWAS

Installation, calibration, and repair of ultrasonic anemometers, weather stations, weather facsimile (fax), Navigational Telex (NAVTEX) receivers, and Bridge Navigational Watch Alarms (BNWAS).

BNWAS NAVTEX Anemometer Weather Facsimile
IMO Res. A.694

Our commitment to round-the-clock port attendance, DG Shipping approved repairs, and exceptional technical expertise in the maritime industry. We ensure that your vessels sail safely, compliant, and on schedule.

Technical Expertise Spotlight ISO & IMO Standard

Why Engage a Professional, Qualified Compass Adjuster?

Effective correction, or compensation, of the marine compass for deviation errors found during compass swings requires deep understanding of Earth’s and ship’s magnetic fields. Our qualified adjusters differentiate between the permanent magnetism of the ship’s hard iron and the induced magnetism of the ship’s soft iron.

IMO Compliance Met
Classification Societies Approved
Flag State Administrations
Port State Control PSC Ready
Compass Swing Bookings

Available at All Indian Ports & Anchorage

Ocean going & coastal ships, high speed crafts, visiting yachts.

Smooth Shipping. Every Time.

Fast, reliable, and cost-effective marine electronics & survey solutions tailored to your business — from emergency berth repairs to complete annual classification surveys.
End-to-End Marine Tech Made Easy

End-to-End Marine Tech Made Easy

One-stop solution for navigational electronic defect rectification, annual VDR APTs, GMDSS surveys, and emergency spares supply.

Port Logistics & Spares
Pan-India Network

Rapid Port Spares & Dispatch

Kandla, Mumbai, Jamnagar, Vizag & Paradip

Certified Marine Field Engineers
Expert Technicians

Qualified Compass Adjusters

Decades of practical expertise recognizing magnetic errors

Proven Operational Process

How We Move Your Goods, Step by Step

01

Voyage & Port Notification

Fast attendance coordination upon vessel ETA announcement at Kandla, Mumbai, Jamnagar, Vizag, or Paradip. Our technical coordinator reviews the defect snag list in advance.

02

Onboard Diagnostic & Calibration

Our certified marine electronics engineers board with specialized diagnostic instruments to inspect RADAR, Gyrocompass, ECDIS, VDR, or conduct compass deviation compensation.

03

Certification & Departure Readiness

Official classification test endorsements, APT certificate issuance, DG Shipping compliance validation, and sea-trial verification ensuring prompt vessel departure.

Average onboard response time: < 2 Hours
Marine Engineers Onboard Port Terminal
Direct Port Technical Team

ISO 9001:2015 Quality Assured • Since 1996

Track Record & Scale

Reliability Backed by Proven Numbers

Nearly three decades of continuous port readiness, safeguarding voyage schedules and vessel compliance across all major and minor Indian ports.

0 +

Years of Maritime Service

Founded in 1996 in Gandhidham (Kandla Port), serving fleets uninterruptedly.

0 +

Vessels Successfully Attended

Emergency berth repairs, annual VDR APTs, GMDSS surveys & compass swings.

0 +

Strategic Port Stations

Permanent stations at Kandla (HQ), Mumbai, Jamnagar, Vizag & Paradip.

0 %

Class Survey Pass Rate

Zero-deficiency record across DNV, LR, ABS, ClassNK, IRS & RINA.

Live Port Readiness: Engineers available 24/7/365 for prompt berth or anchorage attendance
DG Shipping Approved • ISO 9001:2015 • 100+ OEM Spares in Stock
Commercial Container Vessel Operations
Around the Clock Reliability

Trusted Across India's Maritime Gateways

From the Gulf of Kutch to the Coromandel coast, our experienced field engineers are on standby for rapid vessel turnaround and emergency troubleshooting.

0+ Years of Maritime Trust (Since 1996)
0 Strategic Port Hubs
0% Class Compliance
Class Society Approvals

Global Reach. Unmatched Reliability.

RINA Classification Society Approved
IACS Class

Classification Surveys

Authorized by leading global classification societies for GMDSS Radio Surveys and VDR / S-VDR Annual Performance Tests (APTs) across ocean-going and coastal vessels.

Endorsed for RINA & Global Class
DG Shipping Approved Service Station
Govt. Certified

DG Shipping Approved

ISO 9001:2015 certified marine service station equipped with calibrated test bench facilities, OEM certified engineers, and genuine spare parts inventory.

Approved DG Shipping Service Station

Approved across major bodies: DNV, Lloyd's Register (LR), American Bureau of Shipping (ABS), Bureau Veritas (BV), ClassNK, and Indian Register of Shipping (IRS).

Quick Port Coordination

Schedule Port Attendance

24/7 Port Readiness

Average onboard response time: 45 to 90 minutes from ETA confirmation.

Live Port Availability // 24/7 Operations

Pan-India Port Network & Service Availability

Transparent engineering coverage across India’s primary maritime corridors, container hubs, and tanker berths. Check guaranteed response times and station facilities below.

Gujarat — Gulf of Kutch Available Now

Gandhidham / Kandla & Mundra

National Headquarters & Master Service Station

Response Time < 45 Mins
Engineers 24/7 On Standby
Terminals Covered
Kandla Cargo Berths Mundra Port Tuna Tekra Vadinar Anchorage

Station Capabilities: Full testing lab, Gyro overhaul bench, Magnetron test bay, and certified Magnetic Compass Adjuster on call.

+91 2836 – 237692 info@ashapuramarinetech.com
Maharashtra Coast Available Now

Mumbai Port & JNPT Nhava Sheva

Major Commercial Container & Tanker Station

Response Time < 1.5 Hours
Engineers Class Surveyors Ready
Terminals Covered
JNPT Nhava Sheva Mumbai Port (BPT) Butcher Island Outer Anchorage

Station Capabilities: GMDSS Radio Surveys, Annual VDR APT engineers, Magnetic Compass adjustment swings at anchor.

+91 22 27562191 mumbai@ashapuramarinetech.com
Gujarat — Crude Corridor Available Now

Jamnagar, Sikka & Vadinar

Dedicated VLCC, Crude Tanker & SPM Station

Response Time < 1 Hour
Engineers Tanker Certified
Terminals Covered
Reliance Terminal Sikka Port Vadinar SPM Nayara Energy Jetty

Station Capabilities: Tanker GMDSS compliance, Radar magnetron replacements, emergency offshore berth attendance.

+91 2836 – 237692 jamnagar@ashapuramarinetech.com
Andhra Pradesh — East Coast Available Now

Visakhapatnam (Vizag) Port

East Coast Commercial & Naval Station

Response Time < 1.5 Hours
Engineers ECDIS Specialists
Terminals Covered
Vizag Outer Harbor Inner Harbor Gangavaram Port Naval Anchorage

Station Capabilities: Bulk carrier electronics suite, ECDIS navigation calibration, Annual VDR surveys.

+91 2836 – 237692 info@ashapuramarinetech.com
Odisha — East Coast Available Now

Paradip Port

Deep-Water Bulk, Coal & Mineral Station

Response Time < 2 Hours
Engineers Radio Surveyors
Terminals Covered
Iron Ore Berths Oil Jetties IFFCO Berths Roadstead Anchorage

Station Capabilities: GMDSS surveys, AIS / EPIRB testing, Gyrocompass sphere replacement & calibration.

+91 2836 – 237692 info@ashapuramarinetech.com
All Indian Ports & Waters 24/7 Flying Squad

All Other Indian Coastal Ports

Rapid Air & Road Mobile Flying Squad Attendance

Mobilization 4 to 8 Hours
Coverage 100% Indian Coast
Additional Ports Attended
Goa Mangalore Cochin Tuticorin Chennai Kakinada Kolkata / Haldia

Station Capabilities: Emergency voyage defect resolution, sea-trial navigation diagnostics, and flying squad engineer dispatch.

+91 2836 – 237692 / 230549 info@ashapuramarinetech.com
5+
Permanent Bases Direct port offices
< 90m
Avg. Attendance Fastest berth access
100%
Coastline Covered Over 7,500 km range
24/7
Round the Clock Uninterrupted dispatch
Maritime Reputation

What Our Customers Say

"Ashapura Marinetech attended our container vessel at Kandla Port on short notice for an urgent X-Band Radar fault. The engineer diagnosed the defective transceiver module within 45 minutes. Exemplary professionalism."

"Their magnetic compass adjuster conducted a flawless compass swing off Mumbai. Accurate deviation curve calculation and IMO documentation completed promptly before harbor departure."

"Annual VDR APT and GMDSS survey executed seamlessly at Vizag Port. Official classification certificates processed on the same day. Highly recommended marine electronics partner."

Valued Shipowners & Maritime Clients
Client Logo 1
Client Logo 2
Client Logo 3
Client Logo 4
Client Logo 5
Client Logo 6
Client Logo 7
Client Logo 8
Client Logo 9
Client Logo 10
Client Logo 11
Client Logo 12
Client Logo 13
Client Logo 14
Client Logo 1
Client Logo 2
Client Logo 3
Client Logo 4
Client Logo 5
Client Logo 6
Client Logo 7
Client Logo 8
Client Logo 9
Client Logo 10
Client Logo 11
Client Logo 12
Client Logo 13
Client Logo 14
Authorized OEMs & Equipment Manufacturers
OEM Logo 1
OEM Logo 2
OEM Logo 3
OEM Logo 4
OEM Logo 5
OEM Logo 6
OEM Logo 7
OEM Logo 8
OEM Logo 9
OEM Logo 10
OEM Logo 11
OEM Logo 12
OEM Logo 13
OEM Logo 14
OEM Logo 1
OEM Logo 2
OEM Logo 3
OEM Logo 4
OEM Logo 5
OEM Logo 6
OEM Logo 7
OEM Logo 8
OEM Logo 9
OEM Logo 10
OEM Logo 11
OEM Logo 12
OEM Logo 13
OEM Logo 14
Maritime Knowledge & Regulations

Latest Marine Insights & Technical Articles

Field-tested advice, classification guidelines, and regulatory compliance updates written by certified marine engineers and compass adjusters.

Inquire Technical Article
Nautical Magnetic Compass Deviation Swing & Calibration
Compass Calibration
5 min read ISO 25862 Standard
Nov 10, 2026 • By Capt. Technical Adjuster

Understanding Hard & Soft Iron Errors: When Does IMO Require a Compass Swing?

A comprehensive technical breakdown for vessel superintendents on differentiating permanent vessel magnetism from induced fields, when deviation exceeds 5 degrees, and preparing for Port State Control (PSC) inspections.

Navigation
Commercial Vessel Bridge GMDSS Radio Survey Checklist
GMDSS Compliance
6 min read SOLAS Chapter IV
Oct 28, 2026 • By Senior GMDSS Radio Surveyor

Preparing Your Vessel for Annual GMDSS Surveys: Checklist for Zero Deficiencies

Key steps to guarantee first-time pass rates on DNV, LR, ABS, ClassNK & IRS safety radio surveys: reserve source battery discharge testing, EPIRB HRU validity, and DSC automated response checks.

Radio Surveys
VDR and S-VDR Annual Performance Testing Bridge Console
VDR & Safety
4 min read IMO Res. MSC.333(90)
Oct 14, 2026 • By Marine Electronics Lead

VDR & S-VDR Annual APTs: Acoustic Beacon Rules and Sensor Integrity

Explore critical insights into mandatory 90-day underwater locator beacon (ULB) certifications, fixed capsule data extraction procedures, and resolving audio microphone sensor snags before survey arrival.

VDR APT
Fleet Manager Support

Frequently Asked Maritime Questions

Clear answers regarding port attendance, classification society approvals, and compass adjustment certifications.

Ashapura Marinetech International is approved by all leading global classification societies including DNV, Lloyd's Register (LR), American Bureau of Shipping (ABS), Bureau Veritas (BV), ClassNK, and Indian Register of Shipping (IRS). We also operate as a DG Shipping Approved Service Station with ISO 9001:2015 certification.
With our operational headquarters in Gandhidham (Kandla / Mundra) and dedicated liaison offices in Mumbai, Jamnagar, Vizag, and Paradip, our field engineers typically board vessels within 45 to 90 minutes of notice or berthing confirmation. We maintain 24/7 port readiness.
Under IMO and Flag Administration regulations, a magnetic compass swing and adjustment are required: (1) Annually or when compass deviation exceeds 5 degrees, (2) After structural hull modifications, dry docking, or carriage of heavy magnetic cargoes, (3) After electrical rewiring near the compass bridge, and (4) If a deviation card is expired or missing to prevent Port State Control (PSC) deficiency.
Yes. We maintain active liaison and stock genuine spare parts for leading OEMs including Cobham, Sailor, McMurdo, AMI Marine, NSR Marine, Netwave, Comar, Entel, Headway, and Martek. This includes magnetrons, gyro spheres, HRU kits, EPIRB batteries, and antenna units.
Emergency Port Coordination & Technical Bulletins

Stay Updated on Port State Control & Compliance Directives

Direct operational advisories on DG Shipping notices, classification circulars, and instant 24/7 port engineer dispatch across all Indian waters.

Direct coordination: info@ashapuramarinetech.com