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Cos Modafferi, President and CEOIt was actually the satellite industry that came to me. After many years in the cellular industry, working in various levels of leadership in R&D and then Sales and Business development, I got the proverbial call to jump into the satellite space (no pun intended). After some years in it, I came to realise that very important problems can be solved by using the right satellite connectivity solution. Also creating some fuel for the passion for this space, is seeing it starting from a niche technology to serve the underserved, to now satellite becoming the cool technology to solve both underserved and served users, up and down the solution pyramid, from consumer broadband access at mass-scale, up to mission critical comms for government and enterprise users over private satellite networks.
Eliminating Single Points of Failure
The key challenge is to provide a modem product that will mitigate some of the biggest obstacles for operating a resilient private satellite network. One of those obstacles is a central hub station in a private mission-critical network results in a single point of network failure, meaning, any failure at the hub station due to equipment malfunction, cyber attack or physical attack, will result in an entire network outage. Another obstacle, with such a centralised architecture that forms into a “Star” network topology, any two sites to communication traversed back and forth via the central hub station, resulting in double hops over the satellite, which doubles the connection cost and latency, regardless of its orbital connection. Our VSATPlus® product line of modems removes both those obstacles, the first being our hub-less architecture eliminates the need for a central hub satellite station, resulting in a no-single-point of failure to ensure continuous network operation. And not requiring a hub, the modems can operate in a mesh topology to enable direct connections between any two ground stations in the private network.
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Our hub-less architecture eliminates the single point of failure to ensure continuous network operation.
Riding the Next Satcom Wave
We allow our team members to hear the customer voice firsthand and unfiltered, so they can more deeply understand what the customer’s most pressing needs are for operating resilient, mission-critical private networks. Private VSAT networks will evolve in step with terrestrial communications networks, seamlessly connecting with them and across multiple orbits. One key enabler to make this happen is our modem becoming virtualized, to be housed both on the ground and in space across platforms.
I humbly ask all you young engineers and tech pros to consider the following: satellite is now the coolest thing to study, and we need you to guide us older satcom-heads, swiftly and safely, on to this next big satcom wave. I got a feeling it will be a lot of fun.
Choosing VSAT Technology for Private Satellite Networks
Selecting a VSAT solution is about far more than satellite coverage or bandwidth. For organizations that depend on uninterrupted communications, the real question is whether the network will remain available and under their control when terrestrial infrastructure is unavailable, interference disrupts signals or legacy systems still play a vital operational role.
That challenge is especially relevant for aviation authorities, defense organizations, government agencies, energy operators and managers of remote infrastructure. In these environments, satellite networks support essential operations where downtime is simply not an option. The right platform should keep communications running without making every remote location dependent on a shared gateway or an external hub.
Many conventional VSAT systems rely on a hub-based architecture that works well for commercial broadband services. For private networks, however, concentrating traffic and network management in one location can create unnecessary risk. If the hub becomes unavailable, operations across the network may be affected. Organizations responsible for critical infrastructure often need a different approach that gives them greater operational independence.
A private full mesh network provides that flexibility. It allows terminals to communicate directly while keeping network management within the owner’s environment. If a primary control station is disrupted, control can move elsewhere without interrupting critical communications. The result is a network designed around resilience and operational control rather than reliance on centralized infrastructure.
Performance under changing conditions is equally important. Weather, spectrum congestion, adjacent terrestrial systems and fluctuating traffic demands all place pressure on satellite communications. A capable VSAT platform should respond automatically by adjusting frequencies, coding, modulation and bandwidth allocation while services remain active. Those capabilities help maintain link quality, protect high-priority traffic and reduce the need for manual intervention when network conditions become more demanding.
Modernization is another consideration that many organizations cannot ignore. Critical services such as radar, voice, VHF and SCADA often continue to depend on circuit-switched technologies even as newer applications move to IP networks. Replacing established systems in a single step is rarely practical. A more effective strategy allows legacy interfaces and IP services to operate together, supported by the right conversion tools, network management capabilities and migration planning. That approach helps organizations modernize at a pace that protects operational continuity.
PolarSat addresses these requirements with private full mesh VSAT networks designed for organizations that need direct control over their communications. Its VSATPlus family and StreamView Open network management system support aviation, government, SCADA, oil and gas and other distributed operations.
A hubless architecture removes the hub as a single failure point while adaptive modem technology and frequency hopping help maintain communications during interference. The company's experience supporting the migration of older VSATPlus II networks to newer IP-based environments while continuing to support circuit-switched interfaces also allows organizations to modernize at a practical pace without abandoning reliable field-proven systems.
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