JRC AIS JHS-182
Japan Radio Co., Ltd. (JRC)
Refurbished
Manufacturer: Japan Radio Co., Ltd. (JRC)
Country of Origin: Japan
Model: JHS-182
Product Type: Class A Shipborne Automatic Identification System (AIS)
Communication: Marine VHF / TDMA
Display: 5.7-inch FSTN LCD
Power Supply: 24 VDC nominal
Marine Application: Vessel identification, tracking, collision-awareness support and ship-to-ship / ship-to-shore information exchange
The equipment visible in the supplied product photograph is clearly marked JRC AIS JHS-182. The display also identifies the rear Pilot Plug, a standard operationally important AIS interface.
JRC's instruction documentation identifies the JHS-182 as a Class A shipborne AIS designed to automatically exchange a vessel's static and dynamic information with other ships and shore stations over VHF channels using TDMA techniques.
The JRC JHS-182 Automatic Identification System is a professional marine navigation and communication system developed by Japan Radio Co., Ltd.
AIS improves maritime situational awareness by automatically exchanging information between suitably equipped vessels and shore stations. Depending on available sensor data and configuration, this can include vessel identity, position, course, speed and voyage-related information.
The JHS-182 was designed for SOLAS-class commercial vessel applications and meets key AIS standards including IEC 61993-2, ITU-R M.1371 and IEC 60945.
Although it is now a legacy JRC model, many JHS-182 systems remain relevant in the marine spare-parts and replacement-equipment market.
The JHS-182 is a Class A AIS transponder system.
Unlike equipment that only receives AIS targets, a Class A shipborne AIS automatically transmits the vessel's own information while simultaneously receiving AIS transmissions from surrounding vessels and relevant shore stations.
The JHS-182 controller can show nearby AIS targets with information such as bearing, range, vessel name and MMSI, providing the bridge team with another source of navigational awareness.
AIS does not replace radar, visual lookout or proper bridge watchkeeping. Instead, it complements other navigational equipment by providing identification and movement information that may not be immediately apparent from radar alone.
The JRC JHS-182 combines AIS communication with a relatively compact bridge interface.
Class A AIS Operation
Designed as professional shipborne Class A AIS equipment.
5.7-inch FSTN LCD
The controller provides a dedicated monochrome display for AIS targets, menus, alarms and vessel information.
Target Information Display
Nearby AIS-equipped vessels can be presented with bearing, range, vessel name and MMSI information.
Pilot Plug
The controller provides a Pilot Plug interface on the rear panel.
Bridge Equipment Integration
Interfaces permit AIS information to be used by compatible navigation equipment such as radar and ECDIS.
24 VDC Operation
Published JHS-182 specifications identify a nominal 24 VDC (-10%/+30%) power supply.
Maintenance Interface
Documentation identifies IEC 61162 interfaces together with an RS-232C maintenance interface.
Self-Diagnosis & Maintenance Functions
The JRC installation documentation includes a dedicated field-maintenance mode, system initialization procedures, periodic inspection and troubleshooting procedures.
A complete JHS-182 installation consists of several interconnected units.
This is the bridge-mounted display/control unit visible in the supplied photograph.
The front panel contains the LCD, rotary PUSH–ENTER control and dedicated keys including:
The controller allows the operator to view AIS targets, acknowledge or inspect alarms, configure voyage-related information and access system menus.
The NCM-779 is associated with the JHS-182 AIS transponder assembly. It handles the VHF AIS communication functions required for transmission and reception.
The NQE-3182 Connection Box provides system interconnection with external equipment and shipboard sensors.
The JHS-182 documentation specifically identifies the NQE-3182 and its supported external interfaces.
JRC documentation also identifies the NBD-577B power supply unit as part of the JHS-182 system configuration.
AIS requires appropriate VHF and positioning information. Correct antenna installation, separation and cable routing are therefore critical to reliable system operation.
JRC's installation documentation devotes specific procedures to antenna/equipment installation, connectors, terminals, earthing and functional inspection.
The JRC JHS-182 is primarily intended for professional commercial vessels where Class A AIS functionality is required.
Typical applications include container ships, bulk carriers, oil and chemical tankers, LNG/LPG carriers, general cargo vessels, passenger ships, offshore vessels and other SOLAS-class ships where the applicable regulations require AIS.
During navigation, the system supports:
Vessel Identification: AIS can identify participating vessels by MMSI and transmitted vessel information.
Traffic Awareness: The bridge team can monitor nearby AIS-equipped traffic and its reported movement.
Ship-to-Shore Communication: AIS information can be received by appropriately equipped shore infrastructure.
Radar/ECDIS Integration: AIS target information can be supplied to compatible bridge navigation systems.
Pilot Operations: The JHS-182 controller incorporates a pilot plug for appropriate external pilot equipment.
Because many JHS-182 systems have been in service for years, age-related faults are increasingly relevant.
Check the ship's DC supply, circuit protection, connectors, power wiring and power-supply unit.
If correct voltage reaches the system but the controller remains dead, internal power circuitry or controller electronics may require professional inspection.
Possible causes include:
Confirm antenna integrity and check system alarms before replacing the display unit.
AIS depends heavily on valid navigation sensor information.
Check the GPS/GNSS position input, associated interfaces, connectors and AIS sensor status. Invalid external sensor data may produce missing or unreliable AIS information.
Check the appropriate gyrocompass, heading sensor, GPS and speed-log interfaces depending on the vessel's installation.
A healthy AIS transponder cannot display or transmit correct sensor-derived information when the source data is unavailable.
Inspect the NQE-3182 connection box, IEC 61162 wiring, terminal connections, cable continuity and connected navigation sensors.
Loose terminals and corrosion are common issues in older marine electronics installations.
Older controllers can develop:
Where the transponder remains serviceable, replacing or repairing the controller can sometimes be more economical than immediately replacing the entire AIS installation.
Do not assume that seeing targets means the vessel is transmitting correctly. Receive and transmit functions must both be verified.
Check active alarms, VHF antenna condition, MMSI/static configuration and transponder status. Radio/transmitter testing should be performed by qualified marine radio technicians.
JRC's installation manual contains dedicated sections covering periodical inspection, maintenance, troubleshooting, repair units and unit replacement.
Routine inspection is particularly important for an older AIS installation.
Periodically check the controller, NCM-779 transponder assembly, NQE-3182 connection box, power supply, antenna feeder and all external interfaces.
Keep ventilation openings unobstructed and equipment free from excessive dust and moisture. Inspect connectors for corrosion and verify that earth connections remain secure.
During scheduled navigation-equipment maintenance, verify:
Configuration data such as MMSI should only be changed by appropriately authorized personnel.
The JHS-182 is an older-generation AIS, but complete replacement of an existing system can involve more than purchasing a new display.
Existing ships may already have the JHS-182 connected to radar, ECDIS, GPS, gyrocompass, speed log, pilot equipment and other bridge systems. Replacing the complete installation can therefore involve new wiring, configuration, interface work and commissioning.
For vessels maintaining an existing installation, sourcing a compatible JHS-182 controller, NCM-779 transponder, NQE-3182 connection box, NBD-577B power supply or related spare parts may therefore remain a practical maintenance option, provided the final installation continues to satisfy the vessel's applicable regulatory requirements.
Yes. JRC documentation describes the JHS-182 as Class A shipborne AIS equipment.
It was manufactured by Japan Radio Co., Ltd. (JRC), Japan.
NQE-3182 is the Connection Box associated with the JHS-182 system.
Yes. The controller has a pilot plug connection on its rear, also clearly identified on the front of the photographed unit.
The system provides external interfaces allowing AIS information to be integrated with compatible bridge navigation equipment.
Potentially, but the exact model, part number, configuration and compatibility should be checked first. AIS static data and vessel-specific configuration must also be correctly commissioned.
Existing installations may remain operational, but regulatory acceptance and equipment condition must be evaluated for the individual vessel. For a new installation, current type-approved AIS equipment is generally the appropriate choice.
JRC JHS-182 Automatic Identification System (AIS) is a professional Class A shipborne AIS manufactured by Japan Radio Co., Ltd., Japan. The system provides automatic vessel identification and navigational-data exchange over marine VHF channels and can interface with other bridge equipment. Major associated components include the AIS controller, NCM-779 transponder, NQE-3182 connection box and NBD-577B power supply unit.
Marine Automation & Navigation Equipment Supplier
Available Condition:
• New Equipment • Used Equipment • Refurbished Equipment • Reconditioned Equipment
Stock Location:
• Bangladesh • China
Services:
• Worldwide Shipping • Technical Support • Spare Parts Supply • Marine Equipment Sourcing
Contact Information
SM MARINE SERVICE™ Samir Market, DT Road, Pahartali, beside CDA Market, Chattogram, Bangladesh
Mobile / WhatsApp / Viber: +88 01818 929292
Email: info@smmarineservice.com
Website: www.smmarineservice.com
0
BDT 0
BDT 0
BDT 0
BDT 0
Marine Equipment Supplier