Satellite Internet: Then and Now
Traditional satellite internet has long been seen as a last resort — available everywhere, but hampered by high latency, expensive data caps, and underwhelming speeds. That perception is rapidly changing. A new generation of Low-Earth Orbit (LEO) satellite internet services is delivering speeds and latency figures that rival ground-based broadband, even in areas where cable or fiber will likely never reach.
What Is Low-Earth Orbit Satellite Internet?
Traditional geostationary (GEO) satellites orbit around 35,000 kilometres above Earth. At that distance, the round-trip time for data (latency) is typically 600–800 milliseconds — far too slow for real-time applications like video calls or online gaming.
LEO satellites orbit much closer — typically between 500 and 1,200 kilometres above Earth. This dramatically reduces latency to as low as 20–40 milliseconds, which is comparable to many ground-based connections. To compensate for their lower altitude and smaller coverage area, LEO providers launch large constellations of hundreds or even thousands of satellites that work together.
How LEO Satellite Internet Works
- A constellation of satellites orbits Earth at low altitude, constantly moving.
- A small dish antenna installed at your home or business communicates with whichever satellite is overhead.
- The satellite relays data to ground stations, which connect to the broader internet.
- As one satellite passes out of range, another takes over — providing continuous service.
The result is a surprisingly seamless connection, even in remote locations far from any ground-based infrastructure.
How Does LEO Compare to Traditional Satellite and Ground-Based Broadband?
| Feature | GEO Satellite | LEO Satellite | Fiber/Cable |
|---|---|---|---|
| Latency | 600–800 ms | 20–60 ms | 5–30 ms |
| Download Speed | 25–100 Mbps | 50–300+ Mbps | 50 Mbps–10 Gbps |
| Availability | Global | Near-global | Urban/suburban |
| Data Caps | Common | Varies by plan | Varies by ISP |
| Hardware Cost | Moderate | High upfront | Low (often included) |
Who Benefits Most from LEO Satellite Internet?
LEO satellite internet is not necessarily the best choice for everyone — ground-based fiber or cable is still preferable where available. However, LEO is genuinely transformative for:
- Rural and remote households with no access to cable or fiber infrastructure.
- Farmers, remote workers, and businesses in areas beyond fixed broadband reach.
- Maritime and aviation applications — ships and aircraft can now access broadband-grade internet.
- Disaster recovery — LEO terminals can restore connectivity quickly after natural disasters damage ground infrastructure.
- Developing regions where building ground-based infrastructure is economically unfeasible.
Challenges and Limitations
LEO satellite internet isn't without drawbacks:
- High upfront hardware costs: The dish and equipment required can be a significant initial investment.
- Weather sensitivity: Heavy rain, snow, or obstructions can affect signal quality.
- Congestion as networks grow: As subscriber numbers increase, providers must continue expanding their constellations to maintain performance.
- Orbital debris concerns: Large satellite constellations raise environmental and astronomical concerns that are actively debated.
What This Means for the Future of Connectivity
The expansion of LEO satellite networks represents one of the most significant shifts in global internet access in years. For the first time, genuinely fast, low-latency internet is becoming accessible in areas that have been stuck on slow or no broadband for decades. As competition in the LEO space grows and hardware costs decrease, satellite internet is poised to become an increasingly mainstream broadband option — not just a last resort.
Whether you're in a rural area weighing your options, or simply curious about where internet technology is heading, LEO satellite internet is a trend worth watching closely.