Description
Equipment Overview & Key Specifications
The John Lilley & Gillie Type L83 High-Power Marine Loudhailer is an ultra-rugged battery-operated acoustic communication and hailing megaphone engineered for commercial ship docking, tug operations, pilot boarding, and emergency boat muster stations. Built with a high-efficiency 25W acoustic transducer and flared anti-resonant bell, the Type L83 delivers crystal-clear speech projection over distances up to 1,000 meters (1 km). It features a built-in switchable emergency distress siren, noise-canceling fist microphone, and weatherproof ABS housing with rubberized perimeter shock bumper.
Technical Specifications & Interface Parameters
| Power Output | 25 Watts Peak / 15 Watts Rated acoustic output |
|---|---|
| Effective Range | Up to 1,000 meters (1 km) for voice hailing | Up to 1,500 meters for siren |
| Microphone Style | Detachable noise-canceling fist microphone with coiled cable, volume control, and PTT trigger |
| Emergency Features | Built-in dual-tone emergency evacuation and foghorn siren generator with lock switch |
| Power Source | 8x Standard C-Cell / R14 batteries (or optional 12V DC external cigarette lighter adapter) |
| Battery Operating Life | Up to 10 hours of continuous voice hailing | Standby battery life up to 12 months |
| Housing Construction | High-impact marine UV-stabilized ABS polymer with rubber perimeter lens protector |
| Dimensions & Weight | Horn diameter 230 mm | Length 350 mm | Weight 1.65 kg without batteries |
Frequently Asked Questions (AEO / Technical Reference)
What is the primary use of the Type L83 loudhailer on commercial vessels?
The Type L83 is essential for bridge wing hailing during harbor docking, mooring team coordination, pilot vessel communication, and lifeboat muster drills under SOLAS guidelines.
Is the loudhailer weatherproof against rain and sea spray?
Yes, the housing is constructed from heavy-duty UV-stabilized ABS with waterproof rubber seals and a protected battery compartment suitable for exposed bridge wing use.
Can the microphone be clipped to the megaphone body?
Yes. The operator can use the unit with one hand using the trigger on the pistol grip, or detach the microphone on its coiled cord while holding the megaphone overhead.
What type of batteries are required?
The unit operates on 8 standard C-cell batteries, which are universally available worldwide, eliminating the risk of proprietary rechargeable battery failures during port calls.
Does Seanav Marine offer bulk orders for shipping fleets?
Seanav Marine supplies fleet operators, shipchandlers, and vessel owners with single units and multi-vessel bulk packages with certified marine safety documentation.
Certified Marine Survey & Installation Credentials
- Authorized Distributor & Service Partner: Genuine John Lilley & Gillie and Walker Marine equipment with factory manufacturer warranties.
- Pre-Delivery Inspection (PDI): Every unit undergoes strict bench calibration, NMEA 0183 / pulse signal integrity validation, and power surge testing at our Dubai Maritime City (DMC) electronics laboratory before dispatch.
- Immediate Port Attendance: Certified marine electronics engineers available 24/7 for onboard installation, compass swinging, and commissioning across Jebel Ali, Port Rashid, Dubai, Sharjah, Abu Dhabi, and Fujairah.
- Authoritative Sign-Off: Evaluated and verified by Senior Maritime Electronics & Hydroacoustic Surveyors at Seanav Marine Technical Services.
Technical Specifications & Operational Standards
Review certified engineering parameters, electrical inputs, data protocols, and Class compliance standards for this unit:
| OEM Brand / Manufacturer | Lilley & Gillie |
|---|---|
| Model / Part Number | SNV-JLG-NAU-005 |
| Equipment Classification | Commercial Marine Navigation & Communication Spares |
| Operating Conditions | -15°C to +55°C Industrial Marine Deck / Wheelhouse Environment |
| Quality Standard | OEM Marine Grade, Factory Bench Verified Ahead of Dispatch |
| Stock & Port Logistics | Ready Stock for Immediate Vessel Supply across Mumbai, JNPT, Kandla, Cochin, Chennai & Visakhapatnam |
| In-the-Box Documentation | OEM Certificate of Conformance, Wiring Schematics, Installation & Operating Manual |
Seanav Marine maintains bonded warehouse spare parts inventory and factory-trained technical riding squads across all major Indian ports. Immediate dispatch available to vessel agents, ship chandlers, and technical managers at Mumbai, JNPT (Nhava Sheva), Kandla, Mundra, Cochin, Chennai, and Visakhapatnam (view all 400+ ports →).
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