SAILOR 4300

Connectivity Without Boundaries — Sailor 4300 Keeps You Online, Always

Designed for the modern vessel, the SAILOR 4300 delivers unmatched L‑band communications for crew, operations, and IoT — globally, reliably, and maintenance-free.

—　What is the SAILOR 4300?　—

The SAILOR 4300 is a compact, high-performance L-band satellite terminal that delivers reliable voice and data communications at sea via the Iridium Certus® network. Designed for global maritime use, it offers fast installation, low maintenance, and full support for crew communication, telemetry, and IoT systems — even in Polar Regions.

—　What can it do?　—

● Enable simultaneous voice calls with built-in SIP support

● Provide stable internet and data access up to 704 kbps

● Serve as a primary or backup link alongside VSAT systems

● Support IoT, telemetry, and remote monitoring applications

● Operate maintenance-free for up to 10 years

● Simplify installation with a single-cable setup

—　Who is it for?　—

● Commercial vessels (cargo ships, tankers, ferries)

● Offshore fishing vessels and long-range operations

● Government and military patrol boats

● Yachts, expedition ships, and research vessels

● Operators who require always-on, global connectivity

—　Features　—

Compact, Robust & Always On

With a 380 mm diameter antenna and a weight of just 7 kg, the 4300 is a high‑performance, space‑efficient terminal that ensures reliability across the harshest seas — without compromising form or function.

Seamless Single‑Cable Installation

The integrated design supports a single‑cable ADU-to-BDU setup (up to 75 m coax), drastically simplifying deployment. No moving parts means fewer points of failure.

True Global L‑band Link via Iridium Certus

Tapping into the Iridium NEXT constellation, the 4300 offers pole‑to‑pole coverage and supports data rates up to 176 kbps uplink / 704 kbps downlink (firmware upgradeable) for demanding digital applications.

Voice, Data & IoT in One System

Beyond data, it supports three simultaneous voice lines, integrated SIP server functionality, four LAN interfaces, I/O, and APIs for telemetry and fleet systems.

Maintenance‑Free Decade of Operation

Built to endure the rigors of maritime life, it’s engineered to operate for 10 years without scheduled service — significantly reducing life‑cycle costs and downtime risk.

Flexible Deployment Options

Available in both bulkhead-mount and 19” rack-mount versions, it can be deployed as a primary terminal or a resilient fallback (e.g., as a backup to VSAT) in a hybrid communications architecture.

—　The Backbone of Next-Gen Vessel Connectivity　—

The SAILOR 4300 is more than a satellite terminal — it’s the backbone of next‑generation vessel connectivity. Its compact 38 cm antenna delivers high throughput via the Iridium Certus network, supporting speeds of up to 704 kbps downlink and 176 kbps uplink — even in polar or mid-ocean regions.

Installation is effortless: a single coaxial cable links the ADU and BDU, reducing structural work and minimizing cable runs. With no moving parts, the risk of mechanical wear is eliminated, ensuring reliable performance year after year.

Onboard, the terminal’s three voice channels, built‑in SIP server, multiple LAN ports, and I/O give you the flexibility to integrate crew communications, IoT sensors, telemetry, and fleet systems — all through a single node.

Whether used as your primary link or as a backup in a hybrid VSAT scheme, the 4300’s rugged design, low maintenance demands, and support from Cobham’s global service network make it the ideal choice for operators who demand always‑on, horizon‑spanning connectivity.

Want to know more about Sailor 4300 ? Press here.