Satellite Phones Explained
Satellite phones, or “sat phones,” offer a lifeline for staying connected where traditional cellular networks fail. Whether used by maritime professionals, emergency responders, explorers, or remote field workers, satellite phone communication is critical in providing a reliable link to the rest of the world.
Reliable communication is crucial, especially in remote and challenging environments like the middle of the ocean, isolated mountain ranges, or the vast deserts.
What Do We Know About Them?
A satellite phone connects directly to satellites orbiting Earth instead of using cell towers like regular phones. This allows it to work almost anywhere, depending on the satellite network. Satellite networks generally use two types of satellites: low Earth orbit (LEO) and geostationary (GEO) satellites.
LEO vs GEO Satellites
LEO satellites
LEO satellites orbit closer to Earth, which reduces latency but requires a constellation of multiple satellites to provide continuous global coverage.
GEO satellites
GEO satellites are positioned much further out in space and stay in a fixed position relative to the Earth. While this means higher latency, fewer satellites are needed for broad coverage.
INSIDER 
Did you know?
Starlink satellites orbit much closer to Earth than traditional satellites only about 550 kilometers above! This low Earth orbit reduces latency, allowing for faster internet speeds, even in remote areas where traditional broadband isn’t available.
How Do They Work?
When you make a call from a satellite phone, the device connects to the nearest satellite, which relays the signal to a ground station on Earth. This ground station then connects the call to the desired network, whether a regular phone network or another satellite device. The process is similar for data transmission, such as sending text messages or emails.
Benefit of Satellite Phone Communication?
Global Coverage: Satellite phones provide connectivity in locations far beyond the reach of regular cellular networks.
Reliable Connection in Emergencies: These phones are often the only option in disaster-stricken areas where cell networks are down.
Secure Communication: Since satellite phone transmissions are harder to intercept than cellular signals, they offer a level of security appreciated in sensitive industries.
Which Industries use Satellite Phone Communications?
- Maritime and Offshore Energy: For those working on maritime vessels or offshore rigs, a satellite phone can be a critical part of safety measures, allowing constant communication in isolated areas.
- Oil and Gas Industry: Satellite communication is often a requirement for health and safety, enabling real-time updates and alerts from offshore and onshore installations.
- Emergency Response: Emergency teams use satellite phones to maintain communications in areas where traditional infrastructure has been damaged or is nonexistent.
- Exploration and Research: Explorers, scientists, and researchers working in remote locations depend on sat phones to stay connected with their teams and ensure safety.
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Did you know?
The first satellite phone call was made in 1989 by Motorolla, using a device that weighed over 5 pounds!
Get the Right Team
In Satellite Communications, having the right team makes all the difference. From setup to maintenance, expert support ensures reliable connections, even in the most challenging environments. Get the right team to keep your satellite communications running seamlessly and securely, wherever you need them.
Team Vivo Asia is skilled and experienced in the design and commissioning telecom systems, including antennas for radio communication on FPSO vessels. Contact us today to discuss your requirements!