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ACR AISLink CA1 Class A AIS Service, Repair & MMSI Reprogramming

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ACR Electronics Marine AIS Service & Reprogramming

ACR AISLink CA1 Class A AIS Service, Repair, Maintenance & MMSI Reprogramming

Certified marine engineering services for the ACR AISLink CA1 Class A AIS (Class A (SOLAS & Inland Compliant)). Seanav provides 24/7 onboard attendance, IMO MSC.1/Circ.1252 annual performance testing (APT), static data reprogramming (MMSI, IMO, Call Sign), password unlock, RF power amplifier rebuilds, and bridge sensor interfacing across UAE, India, Singapore, and worldwide ports.

AIS Class: Class A (SOLAS & Inland Compliant)
RF Output: 12.5 W High / 1.0 W Low
Power Input: 12-24 VDC (9.6 – 31.2 VDC)
Standard: IMO MSC.74(69), ITU-R M.1371-5, IEC 61993-2 Ed.2

⚓ Seanav Marine UAE NAVCOM & AIS Service Hub:

1. Technical Service, Repair & Maintenance Scope

The ACR AISLink CA1 Class A AIS is a high-precision marine AIS transponder engineered for demanding offshore and commercial shipping applications. Routine maintenance and specialized component-level repair ensure uninterrupted VHF data exchange on 161.975 MHz (AIS 1) and 162.025 MHz (AIS 2) per ITU-R M.1371.

🔧 RF Circuitry & Transceiver Repair

  • Internal VHF power amplifier (PA) transistor inspection and power level tuning
  • Receiver sensitivity measurement (-107 dBm threshold verification)
  • VHF Antenna VSWR matching and coaxial cable loss diagnostics
  • DSC Channel 70 receiver tuning and telecommand response tests

🔄 MMSI Reprogramming & Password Reset

  • Flag change static data reprogramming (9-digit MMSI, 7-digit IMO, Call Sign)
  • Internal GNSS antenna position offsets entry (Dimensions A, B, C, D in meters)
  • Dealer password recovery and supervisor security PIN unlock
  • Dedicated service interface using proAIS2 / ACR CA1 Service Tool & Engineering PIN

📋 Annual Radio Survey & APT Testing

  • IMO MSC.1/Circ.1252 annual performance testing with Futronic MKII / Argonaut
  • RF forward/reflected power measurement (tolerance within ±1.5 dB)
  • Transmitter frequency tolerance calibration (within ±500 Hz)
  • Pilot plug signal amplitude and polarity compliance verification

🔌 Bridge Sensor & Pilot Plug Interfacing

  • Gyrocompass HDT / THS heading input configuration at 4800 / 38400 baud
  • ECDIS and ARPA Radar target tracking interface (AIVDM / AIVDO sentences)
  • VDR dual-stream output synchronization
  • Standard IEC 61162-2 pilot plug interface validation

2. Reprogramming Procedures & Dealer Configuration (ACR AISLink CA1 Class A AIS)

During vessel flag registration change, sale, or structural alteration, the static data on the ACR AISLink CA1 Class A AIS must be updated strictly by certified marine electronics engineers. Modifying protected static parameters requires authorized dealer access:

  1. Connection & Diagnostic Hookup: Connect the Seanav service PC to the maintenance port or front-panel service interface using the dedicated interface adapter.
  2. Service Software Initiation: Execute proAIS2 / ACR CA1 Service Tool & Engineering PIN with authorized engineering credentials to bypass user-level locks.
  3. MMSI Re-initialization: Clear the existing 9-digit MMSI from the transponder EEPROM and input the newly assigned Maritime Mobile Service Identity.
  4. Static Vessel Details Entry: Input the official IMO ship identification number, radio Call Sign, official vessel name, and ITU ship type / cargo classification.
  5. GNSS Offset Alignment: Enter exact physical measurements (Offsets A, B, C, D) from the internal GPS antenna to the bow, stern, port, and starboard hull edges.
  6. Verification & Test Transmission: Conduct an interrogation cycle with our calibrated AIS test box to verify that updated static data packages (Message 5 / Message 24) broadcast accurately over the VDL.

3. Technical Specifications (ACR AISLink CA1 Class A AIS)

Parameter Specification Details
Manufacturer ACR Electronics
Model Name ACR AISLink CA1 Class A AIS
AIS Classification Class A (SOLAS & Inland Compliant)
Operating Frequencies AIS 1 (161.975 MHz), AIS 2 (162.025 MHz), DSC (156.525 MHz)
Transmitter RF Power 12.5 W High / 1.0 W Low
Primary Power Supply 12-24 VDC (9.6 – 31.2 VDC)
Communication Standards IMO MSC.74(69), ITU-R M.1371-5, IEC 61993-2 Ed.2
Data Interfaces 5-inch Full Color Display, 3x NMEA 0183, NMEA 2000, Wi-Fi, USB, Pilot Plug
Display 5-inch Full Color Sunlight-viewable display with night vision modes
Waterproof IPX7 waterproof rating
Pilot Plug Standard front-panel 9-pin AMP connector with isolated RS-422 output

4. Diagnostic Alarms & Troubleshooting (ACR AISLink CA1 Class A AIS)

Alarm / Fault Code Description & Seanav Corrective Action
TX Malfunction Internal PA bias or frequency error; verified with test set.
Antenna VSWR High High return loss on VHF whip; checked coaxial line.
Heading Lost No HDT/THS input; checked NMEA 0183 connection.

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Need Immediate Support for ACR AISLink CA1 Class A AIS?

Seanav engineers carry OEM diagnostic equipment, programming tools, and spare parts for 24/7 attendance across UAE, India, Singapore, and worldwide ports.

Request Service / Reprogramming for ACR AISLink CA1 Class A AIS
Direct Bridge Support: service@seanav.org

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Posted on 06/10/2026 by

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Reviewed by Seanav Marine technical team

Seanav Marine

Marine Technical Author

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