You get internet from satellites instead of phone lines or cable, and Starlink is SpaceX’s global effort to make that fast and widely available. Starlink uses hundreds to thousands of low-Earth orbit satellites to beam broadband to a small dish you place at home, giving speeds and latency closer to terrestrial internet than older satellite services.
This article explains how satellite internet works, what sets Starlink apart, and what to expect for speed, coverage, and cost. It highlights SpaceX’s role, how the network routes signals, and practical pros and cons so you can decide whether satellite broadband fits your needs.
How Starlink and Satellite Broadband Work
Starlink uses thousands of low Earth orbit satellites and ground infrastructure to deliver broadband. The system combines phased-array user terminals, ground stations, and inter-satellite links to route traffic between users and the internet backbone.
The Starlink Satellite Constellation and LEO Technology
Starlink operates a multi-thousand-satellite constellation in low Earth orbit (LEO), typically between 340 km and 1,200 km altitude. These low Earth orbit satellites reduce signal travel time compared with geostationary orbit systems, which lowers latency for applications like video conferencing, competitive gaming, and 4K streaming.
Satellites are launched in batches on Falcon 9 rockets and will also use Starship for higher cadence launches. They fly in coordinated orbital shells that create overlapping coverage; each shell contains satellites at a specific altitude and inclination to deliver continuous service across latitudes.
Recent Starlink spacecraft include phased-array antennas and, on many newer models, laser inter-satellite links (optical ISLs) in E-band-like optical frequencies. Those links let data traverse space between satellites without ground stations, shortening routes across oceans and remote regions.
User Equipment: Starlink Dish, Terminal, and Setup
The user terminal, commonly called the Starlink dish or “Dishy McFlatface,” is a compact, motorised phased array antenna that electronically steers beams toward overhead satellites. Phased array technology and adaptive beamforming allow the dish to track multiple fast-moving LEO satellites without large mechanical motion.
Starlink ships as a kit with the dish, mounting hardware, a power supply, and an Ethernet/Wi‑Fi router. Set up uses the Starlink app for site selection and alignment checks; the app shows satellite visibility and recommended placement to avoid obstructions. Installation often takes under 30 minutes for a standard residential setup.
The terminal supports automatic firmware updates and handles handovers between satellites. Business and residential plans use the same basic hardware family, with some higher-tier terminals offering improved performance or dedicated mounts for rooftop and vehicle installations.
Network Architecture: Ground Stations, Inter-Satellite Links, and Internet Backbone
Ground stations (also called gateways) connect the satellite network to terrestrial internet backbones. Starlink deploys distributed ground stations near fibre infrastructure so traffic can enter regional internet exchanges with minimal hops.
Laser inter-satellite links allow satellites to exchange data in orbit, reducing reliance on ground stations for long-haul routing. Where optical ISLs are unavailable or restricted, traffic routes via the nearest ground station using E-band or microwave feeder links. This hybrid architecture balances redundancy, latency, and bandwidth capacity.
Routing uses dynamic network management to assign user traffic to optimal satellites, ground stations, and inter-satellite paths. That system optimises for latency, congestion, and regulatory constraints while maintaining handovers as satellites move across the sky.
Satellite Internet Performance: Speed, Latency, and Coverage
Starlink advertises typical download speeds ranging from the low 50s Mbps to several hundred Mbps, depending on location, plan, and congestion. Upload speeds commonly range from 5–30 Mbps on residential setups, with higher values on business or dedicated-premises hardware.
Latency for LEO-based Starlink typically measures 20–50 ms to regional internet endpoints, much lower than geostationary providers that often exceed 600 ms. Lower latency enables responsive web browsing, HD video calls, cloud apps, and many real-time multiplayer games, though ultra-competitive esports may still prefer fibre.
Coverage expands as Starlink launches more satellites; availability is determined by satellite density, regulatory approvals, and ground-station placement. Performance varies by obstruction, elevation angle, local interference, and peak usage. Competing satellite internet providers like HughesNet and Viasat use GEO satellites, which yield higher latency and different coverage trade-offs compared with Starlink’s LEO constellation.