What Is the NexusWave Solution?
When Maritime Connectivity Became Non-Negotiable
A few years ago, a vessel maintaining stable satellite communications was something to be proud of. That bar has moved. Shipowners and fleet operators now face a different reality: data is no longer a convenience, it is operational infrastructure. From voyage monitoring under GMDSS (the Global Maritime Distress and Safety System) to remote reporting ashore, to keeping crew connected with family after a long watch, bandwidth demand keeps climbing with no sign of levelling off.
Yet the maritime connectivity market has grown in the wrong direction. Overlapping tariff packages, rigid data caps, patchy coverage, and security that is hard to verify. Some vessels run three or four providers across different trade lanes, while shore-based IT teams see nothing at all. That is the problem NexusWave was built to solve.
What Is NexusWave? A Service Overview
NexusWave is a fully managed maritime connectivity service developed by Inmarsat and distributed through regional partners such as MarineConnect. The core difference: this is not a standard satellite package. NexusWave simultaneously combines multiple network underlays including LEO (Low Earth Orbit satellites such as Starlink), GX Ka-Band (Inmarsat's high-speed broadband satellite), LTE (4G coastal connectivity) and L-band (Inmarsat's narrowband satellite layer, providing highly reliable backup) into a single, unified connection.
Customers sign one contract, receive one flat monthly invoice, never worry about overages, and never have to monitor individual network coverage themselves. All technical orchestration and monitoring is handled 24/7 by Inmarsat's expert team. Unlimited data. Global coverage. 99.9% uptime guaranteed.
How Does Network Bonding Technology Work?
Network bonding means all underlying networks are active at the same time, not switched between in rotation. Rather than using LEO offshore and then switching to LTE at port, NexusWave runs both simultaneously and distributes traffic intelligently between them in real time.
The foundation is SD-WAN (Software-Defined Wide Area Network), which allows the system to prioritise which applications use which network, even while the vessel is underway. A practical example: a vessel anchored at the Port of Singapore during peak hours, satellite signal heavily contested. Instead of dropping connection, NexusWave automatically routes critical traffic through port LTE while keeping the satellite path clear for operational applications. Neither crew nor the operations team notices any interruption.
The system is future-proof: when ViaSat-3 Ka-Band enters service (expected in 2026), it can be added as a new underlay with no changes to the existing overlay network. No disruption, no additional hardware replacement.
Before and After NexusWave: A Real-World Comparison
To understand what NexusWave actually delivers, it helps to look at how a mid-sized or large fleet typically managed connectivity before upgrading.
Before NexusWave, the common setup looked like this: one GEO VSAT (geostationary satellite) package for primary communications, a 4G SIM card for port use, sometimes a backup L-band Iridium or Inmarsat Fleet One terminal. Three providers, three invoices, three separate management systems. Hard data caps where exceeding quota meant unexpected charges. When a vessel changed region, shore IT lost real-time visibility of connection status entirely. Security depended on each individual carrier, with no unified encryption layer at fleet level. Crew shared the same pipe as operational systems, meaning a crew member streaming video would cause CCTV feeds and voyage reporting to lag.
After switching to NexusWave, everything consolidates onto one platform. One contract, a flat monthly fee, hardware and future upgrades included. Unlimited data, so there is no risk of running out mid-voyage. Shore IT can see each vessel's connectivity status in real time. Three fully segregated networks for operations, business and crew run in parallel without competing for bandwidth. Total Cost of Ownership (TCO) is transparent and predictable from day one, with no surprise charges at month end.
Three Separate Connectivity Lanes on One Vessel
One of NexusWave's genuine strengths is its network segregation architecture. On a single vessel, three lanes operate in complete isolation and never compete for each other's bandwidth.
The Business Network serves corporate needs: large file transfers, video conferencing with shore via Office 365, remote IT management. This lane carries the highest priority, ensuring business applications are never disrupted by crew traffic or IoT sensor data.
The Operational Network is dedicated exclusively to vessel operations: CCTV, remote monitoring systems, IoT sensors, telemedicine, voyage reporting. It is designed in line with the IMO 2021 Cybersecurity Guidelines and is fully isolated from the other two lanes, so any threat that reaches one network cannot cross into critical operational systems.
The Crew Network is optimised for seafarer welfare: messaging, social media, online banking, streaming, video calls home. It has no impact on operational performance. Depending on the plan, this lane supports between 5 and 15 concurrent streams.
Four NexusWave Plans: Select, Extra, Prime, Advanced
All four NexusWave plans include unlimited data, network bonding, network-wide encryption and 99.9% uptime backed by L-band redundancy. The differences lie in guaranteed speeds, crew stream capacity and the level of technical support.
Select suits mid-sized vessels: maximum download speeds of 160-180 Mbps, guaranteed speed of 256/128 kbps, and support for 5 concurrent crew streams. An entry-level plan that still covers all core features.
Extra raises speeds to 200-230 Mbps, guaranteed speed of 512/256 kbps, and adds LTE port and coastal connectivity for the business and operational networks. A good fit for vessels with higher remote management requirements.
Prime is designed for complex fleet operations: guaranteed speed of 1,024/512 kbps, 10 crew streams, LTE across all three networks, concurrent enterprise application support, preferential UTM pricing and a Standard Care Programme. The plan most commonly recommended for vessels on regular deep-sea trade lanes.
Advanced is the highest tier: guaranteed speed of 2,048/1,024 kbps, 15 crew streams, a Premium Customer Support SLA and preferential Unified Threat Management pricing. Built for large vessels, high-value cargo carriers, or fleets with strict compliance requirements under SOLAS and other international maritime regulations.
Plan selection depends on crew size, trade routes and the degree of enterprise application usage. The MarineConnect team typically recommends starting from Prime for vessels operating frequent transoceanic voyages.
"Secure By Design" Security in a Maritime Environment
Maritime cybersecurity is no longer a precautionary measure. It is a mandatory compliance requirement. Since IMO Resolution MSC-FAL.1/Circ.3 (the IMO 2021 Maritime Cybersecurity Guidelines) came into force, vessel operators must integrate cyber risk management into their SMS (Safety Management System) under the ISM Code.
NexusWave is built on a secure by design architecture: all traffic is encrypted at the vessel endpoint before it leaves the ship, regardless of which underlying network carries it. ISP-grade firewall protection covers every point in the infrastructure. The three operational, business and crew networks each run in fully separated pipelines, meaning a threat that penetrates one lane cannot propagate to another.
For fleets with higher security requirements, the add-on Unified Threat Management (UTM) service provides an additional layer of real-time threat monitoring and detection. The entire infrastructure is audited against IMO standards and is trusted by governments and global enterprises alike.
FAQ: Common Questions About NexusWave
Is NexusWave suitable for smaller vessels, or is it only for large ships?
NexusWave works across a wide range of vessel types, from mid-sized cargo ships to container vessels, tankers and deep-sea passenger vessels. The Select plan is a practical entry point for vessels with smaller crews. More important than vessel size is the operational requirement: if a ship needs reliable connectivity for voyage reporting, navigation monitoring or crew welfare on long trade lanes, NexusWave is worth serious consideration.
What happens if both LEO and VSAT signals are lost?
This is exactly why L-band is included in every NexusWave plan. L-band is an older Inmarsat satellite technology but exceptionally dependable, with near-global coverage including polar regions and no vulnerability to hotspot congestion. If both LEO and GX Ka-Band experience an outage, L-band automatically takes over to maintain minimum connectivity for mission-critical applications like GMDSS and AIS (Automatic Identification System). Overall committed uptime across the bonded network is 99.9%.
Does the cost include hardware and future equipment upgrades?
Yes. NexusWave's fully managed package includes hardware and future upgrades. When Inmarsat adds a new underlay such as ViaSat-3, vessels benefit automatically with no additional cost and no hardware replacement required. There are no hidden fees or unexpected charges at month end. Total cost of ownership is transparent from the start.
Does NexusWave cover Southeast Asia and the Strait of Malacca?
Yes. NexusWave draws on Inmarsat's global satellite infrastructure combined with LEO and LTE, covering all major trade routes through the Strait of Malacca, the South China Sea and key regional ports including Singapore, Port Klang and Laem Chabang. As a regional partner, MarineConnect also provides on-the-ground technical support across Southeast Asia, reducing response times compared to providers without a local presence.
Talk to MarineConnect About NexusWave
If you are running a fleet and find yourself managing more than one connectivity invoice each month, or looking to upgrade your vessel's digital infrastructure to meet IMO 2021 requirements, this is a good moment to reassess your connectivity strategy from the ground up.
MarineConnect is the NexusWave deployment partner for Southeast Asia, with a team that understands both the technical requirements and the day-to-day realities of vessel operations. Explore our full range of maritime connectivity services to see how NexusWave fits within a broader vessel digitalisation strategy. We advise on plan selection for each vessel type, support onboard hardware deployment and monitor performance after go-live.
Reach us at [email protected] or visit marineconnect.sg to arrange a consultation. No commitment required, just a conversation to understand what your fleet actually needs.
