WHAT IS VSAT?
VSAT stands for Very Small Aperture Terminal. In simple terms, it’s a compact telecommunication station that sends and receives real-time data through satellites. The system works by transmitting signals to satellites orbiting the Earth, which then relay the data to various centers across the globe.
The introduction of satellite communication, especially VSAT, has been a game-changer for the maritime industry. Traditionally, once a ship left port, it would lose all contact with the outside world. But with VSAT technology, ships can now stay connected no matter where they are at sea.
This advancement offers high-speed internet, mobile phone connectivity, and real-time data monitoring. It has made life easier not just for the crew but also for passengers onboard. Ships can now place orders for supplies before reaching the next port, reducing downtime and helping maximize operational hours while navigating busy trade routes.
Get expert Marine Communication Services from the leading marine service company
DIFFERENT PURPOSES OF VSATS IN MARINE COMMUNICATION:
With VSAT systems installed on ships, both crew members and passengers now enjoy high-speed internet access, telephone connectivity, real-time weather monitoring, and even the ability to file regulatory documents while still at sea.
In maritime communication, narrowband data typically covers point-of-sale transactions like credit card processing, polling, RFID data, or SCADA systems. Broadband data, on the other hand, supports satellite internet access for remote locations, VoIP calls, and video transmissions.
Maritime VSAT services use both Ku-band and C-band frequencies. The latter operates between 4 – 8 GHz while the former ranges from 12 – 18 GHz. Both are used through satellites orbiting the Earth at GEO orbital locations. This requires steady antennas for accurate tracking due to its fluctuating movements as the vessel’s movements are always changing.
Maritime VSAT antennas typically range in size from 60 cm – 1.5 meters wide when used with Ku-band and 2.4 meters when used with C-band frequency transmissions. A stabilized VSAT antenna has a circular dome that is 2.4 meters or less in diameter.
Most VSAT antennas are around 75cm-1.2m long and data rates can vary from 4 kbit/s up to 16 Mbit/s. A remote maritime system consists of two units; Above Deck Unit and Below Deck Unit. The Above Deck Unit has the antenna and transceiver, which is usually placed outdoors – either inside a radome or outside – while the Below Deck Unit control will manage the antenna indoors
Ships typically share bandwidth with other vessels, which supports basic communication needs. However, when multiple ships are connected simultaneously, the risk of data loss increases, making large-scale data transmissions more challenging.
For offshore operations, exploration missions, cruise liners, and ferries, stable and high-capacity data connections are crucial. VSAT enables the transmission of large data volumes at broadband speeds, ensuring seamless operations even in the middle of the ocean.
KEY TAKEAWAYS :
- Maritime Operators around the world are beginning to take notice of how valuable VSATs are becoming and how much potential there is for increased profitability.
- The data rates for this technology continue to rise, which means people will be able to watch videos and do other bandwidth-intensive business tasks.
- Right now, people who want a VSAT system will often have trouble finding one, but this could change soon because of new technological advancements and innovations that are being developed which would make these systems more affordable and easier to install.
- Maritime equipment manufacturers are designing smaller terminals and antennas which can improve operational efficiency.
- Maritime software developers are developing new software that will allow marine operators to use VSAT technology to have safe, more intelligent, and more profitable operations.
Blessed Marine Automation provides the latest and highest quality maritime technology. They offer a variety of satellite communication devices for different vessels, boats, and yachts around the world. Contact Blessed Marine to learn more about how their advanced technology can improve your existing service or transportation ships.