Starlink sends internet signals from space through thousands of orbiting satellites

Starlink is a satellite internet service run by SpaceX. Instead of using cables buried in the ground or cell towers, Starlink beams internet signals down from satellites that orbit Earth at about 340 miles up. Your home receives these signals through a small dish antenna pointed at the sky, then a router inside your home distributes the connection to your devices — much like a traditional home internet setup, except the signal originates from space rather than a ground station.

The system works because Starlink maintains a constellation of thousands of satellites in low Earth orbit. As one satellite passes over your location, another is always moving into position to take over the connection. This constant handoff happens automatically and is designed to keep your service running without interruption, though the transition between satellites can occasionally cause brief pauses in your connection.

Key Takeaways

  • Starlink satellites orbit 340 miles above Earth and transmit signals to a dish antenna installed at your home.
  • The dish communicates directly with satellites overhead, so trees, buildings, or weather can block or weaken your signal.
  • Setup requires a clear view of the northern sky (in the Northern Hemisphere) and a power outlet near the dish location.
  • Starlink speeds typically range from 50 to 150 Mbps, though actual performance varies based on your location, time of day, and network congestion.
  • The service costs a monthly fee plus an upfront equipment cost, with no long-term contract required.

What the Starlink dish does and where it goes

The Starlink dish is a flat, rectangular antenna about the size of a laptop. It contains thousands of tiny antenna elements that work together to track and communicate with satellites as they move across the sky. The dish automatically adjusts its angle throughout the day to maintain the strongest possible connection — you do not need to aim it manually after installation.

The dish connects to a power supply and a router via cables. The router is a separate device that broadcasts Wi-Fi throughout your home and provides an ethernet port for devices that need a wired connection. Most people mount the dish on a roof, pole, or wall where it has an unobstructed view of the sky. The exact placement matters: trees, buildings, hills, or even heavy cloud cover can reduce signal strength or cause temporary disconnections.

How the signal travels from satellite to your home

When you request data — opening a website, streaming video, or sending an email — your request travels from your device to the Starlink router, then up to the nearest satellite overhead. That satellite receives your request and sends it down to a ground station, which connects to the broader internet. The response travels back through the same path: internet to ground station, up to satellite, down to your dish, through the router, and to your device.

This round trip takes time. Starlink's latency (the delay between sending a request and receiving a response) is typically 20 to 40 milliseconds, which is noticeably higher than cable or fiber internet but low enough for most everyday tasks like browsing, email, and video calls. Online gaming and real-time applications can feel slightly sluggish compared to ground-based internet, though many users report acceptable performance for casual gaming.

Why weather and obstructions affect your connection

Starlink signals travel through the atmosphere, so heavy rain, snow, or dense clouds can weaken or temporarily block the connection. The effect varies: light rain usually causes minor slowdowns, while heavy thunderstorms or wet snow accumulation on the dish can cause brief outages. The dish has a heating element that melts snow and ice, but this only works if power is available.

Obstructions between the dish and the sky are equally important. Trees growing in front of the dish, a building overhang, or even a nearby hill can block satellites from view. During installation, Starlink's app shows you which parts of the sky have clear line of sight and which are blocked. The more sky you can see, the more satellites are available to connect to, and the more reliable your service becomes.

Speed and performance compared to other internet types

Starlink's download speeds typically range from 50 to 150 Mbps, with upload speeds between 5 and 20 Mbps. These numbers vary significantly based on your location, the time of day (peak evening hours are often slower), and how many people in your area are using the service. In rural locations with fewer users, speeds often sit at the higher end of that range. In areas with higher adoption, speeds may be lower during busy times.

For comparison, cable internet in populated areas often delivers 100 to 300 Mbps, while fiber can exceed 500 Mbps. Starlink's upload speeds are notably slower than cable or fiber, which can matter if you regularly upload large files or stream video from your home. For streaming video, browsing, and video calls, Starlink's speeds are generally sufficient. For households with many simultaneous users or heavy upload needs, the limitations become more noticeable.

Data limits and how Starlink manages network congestion

Starlink does not impose a hard monthly data cap — you can use as much data as you want without overage charges. However, the service does use a system called prioritization during times of network congestion. If your area becomes very busy, Starlink may temporarily slow your connection to ensure all users get a minimum level of service. This is different from a data cap but has a similar effect: heavy users may experience reduced speeds during peak hours.

The prioritization system is designed to prevent any single user from consuming so much bandwidth that others cannot use the service. In practice, this means that during evening hours in densely populated areas, speeds may drop noticeably. Starlink publishes coverage maps that show expected speeds in your specific location, though actual performance can vary from the estimate.

Installation, equipment costs, and what you need to know before ordering

Starlink requires a clear view of the northern sky in the Northern Hemisphere (or southern sky in the Southern Hemisphere). The company's app lets you check your specific address before you order, showing whether your location has adequate sky visibility. If trees or buildings block too much of the sky, the service may not work well for you.

The equipment includes the dish, router, mounting hardware, and cables. Starlink charges an upfront equipment cost (currently around $600, though this varies by region and changes periodically) plus a monthly service fee. There is no long-term contract, so you can cancel anytime. Professional installation is available for an additional fee, or you can install the equipment yourself if you are comfortable working on a roof or pole.

Setup typically takes 30 minutes to an hour once the dish is mounted. The Starlink app guides you through the process and confirms when the dish has locked onto satellites. After that, the system runs automatically — the dish tracks satellites and maintains the connection without any action from you.

Frequently Asked Questions

Can I use Starlink if I have trees near my house?

It depends on how much sky the trees block. Starlink's app shows you exactly which parts of the sky are obstructed from your address. Some trees are acceptable if they do not block the primary satellite paths. If trees block most of the southern sky (in the Northern Hemisphere), Starlink will not work well. Trimming branches or relocating the dish to a clearer spot can sometimes solve the problem.

How long does it take to get Starlink installed?

After you order, the wait time depends on your location and current demand. In some areas, equipment ships within days; in others, it can take weeks or months. Once the equipment arrives, installation takes 30 minutes to an hour if you do it yourself, or longer if you schedule professional installation. The service is active as soon as the dish locks onto satellites.

What happens to my internet during a thunderstorm?

Heavy rain and thunderstorms can cause temporary slowdowns or brief outages. The effect varies based on storm intensity and your location. Most users experience occasional disconnections during severe weather, lasting from seconds to a few minutes. Light rain usually causes minor slowdowns rather than full outages. The dish's heating element helps with snow and ice, but only if power is available.

Is Starlink faster than my current cable internet?

Starlink's typical speeds (50 to 150 Mbps) are often comparable to cable but usually slower than fiber. If your cable internet delivers 200+ Mbps, cable is likely faster. If you have older cable service or live in an area with limited options, Starlink may be faster. The best way to compare is to check Starlink's coverage map for your address, which shows expected speeds in your location.

Can I move my Starlink dish to a different house?

Yes. Starlink service is tied to your account, not to a specific address. You can move the dish to a new location and update your service address in the app. If you move to an area with different coverage, your speeds and performance may change. You can pause your service for up to three months if you are moving and do not need internet during the transition.