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Satellite internet sends your data by radio from a terminal at your home to an orbiting satellite, then through a ground gateway or, on some networks, optical links between satellites, before joining the provider’s terrestrial network and the wider internet. The return trip follows the same kind of chain. Orbit height affects the signal’s propagation time, but your actual response time also depends on gateways, routing, radio scheduling, processing, congestion, Wi-Fi, and the destination server.
That is why a service can cover your address yet still need a clear view of the sky, show different latency at busy times, or briefly degrade during heavy precipitation. The figures below use Starlink as a documented example and are explicitly company-reported; other providers can use different orbits, network designs, plans, and equipment.
How does satellite internet work?
A satellite connection is a radio link followed by an ordinary internet journey. Your dish or flat-panel terminal exchanges data with a satellite overhead; the satellite network moves that traffic toward a gateway connected to fiber or another terrestrial backhaul; the provider then routes it to the requested website, game server, video call service, or cloud application.
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- Your device to the router: A phone, computer, television, or other device sends a packet over Ethernet or Wi-Fi to the satellite provider’s router.
- Router to terminal: The router passes the packet to the outdoor satellite terminal over the local network.
- Terminal to satellite: The terminal transmits a radio signal to a satellite. The satellite’s altitude and the angle of the path determine part of the propagation distance.
- Satellite to the ground network: The satellite sends the packet to a ground gateway, or a network may pass it through optical inter-satellite links before reaching a gateway.
- Provider network to the internet: Once on terrestrial infrastructure, the packet travels through normal internet routers to its destination.
- Response back to you: The destination’s response returns through the provider’s network, satellite path, and terminal to your router. The elapsed round trip is what latency tests report.
The satellite is therefore only one part of the route. A nearby data center can respond quickly even when the access link is wireless, while a distant or congested destination can dominate the result.
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Why does satellite internet have latency?
Latency is round-trip time (RTT): the time for a packet to travel from the router to the internet and for the response to arrive. It is normally shown in milliseconds. A lower RTT makes interactive actions feel more immediate; download speed, measured in megabits per second, describes how much data can move at once. A fast connection can still feel sluggish if its RTT is high, and a modest-speed connection can feel responsive when its RTT is low.
Orbit height sets the propagation floor
Low-Earth-orbit (LEO) satellites fly much closer to Earth than geostationary (GEO) satellites. Starlink’s technology overview describes its own LEO network at about 550 km and contrasts that with the 35,786 km GEO orbit altitude. Those are explanatory orbit figures from the company, not independent measurements of every network. The shorter LEO path reduces the signal’s propagation component, while a GEO path is much longer before routing and processing are even considered.
Starlink’s latency report says the user-to-satellite-to-ground propagation portion of its network is usually under 10 ms round trip. That number is not a promised customer ping: gateway location, route selection, satellite handoffs, shared radio scheduling, encryption and other processing, congestion, home Wi-Fi, and the destination all add time.
Published figures need their scope attached
| Figure | What it describes | Scope and qualification |
|---|---|---|
| About 550 km | Starlink’s stated LEO altitude | Company explanatory figure; not a service-speed measurement. |
| 35,786 km | GEO orbit altitude used in Starlink’s comparison | Company explanatory comparison; not a measurement of a particular GEO provider. |
| Usually under 10 ms RTT | User-to-satellite-to-ground propagation portion | Starlink latency report; excludes other contributors to an end-to-end ping. |
| 25–60 ms land latency | Land-service latency range | Starlink Specifications; company-listed range, with actual results varying by location and plan. |
| 100+ ms in certain remote locations | Higher land latency in some locations | Starlink Specifications; not a universal result for all remote addresses. |
| 25.7 ms median peak-hour latency in the United States | Reported network latency | Starlink’s 2025 network update; a US aggregate, not a global or individual guarantee. |
| Nearly 200 Mbps median download | Peak-demand download performance | Starlink’s July 2025 statement for more than 2 million active US customers; a dated vendor aggregate, not an individual speed commitment. |
The latency report samples anonymized router measurements every 15 seconds and focuses on peak usage from 6–9 p.m. local time. Earlier figures in that report are historical. For a current expectation, use the provider’s latest dated performance information and test results from your own address rather than treating an old headline number as a guarantee.
What latency feels like
- Web browsing and downloads: Throughput usually matters more after a page begins loading, although high RTT can delay the first response and each additional connection.
- Video calls: RTT affects conversational timing. Variable latency, called jitter, can be as disruptive as a high average.
- Online games: The game server, route, and consistency of the connection matter as much as the access technology. A satellite link cannot make a distant server local.
- Backups and large transfers: Sustained bandwidth is usually the limiting factor; latency matters mainly when the application opens many sequential connections.
What does coverage mean in practice?
Coverage has two separate meanings. First, a provider may accept service orders for an address or show that a region lies inside its service footprint. Second, the installation must be able to communicate with satellites from the actual mounting location. A colored area on an availability map answers the first question, not the second.
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Check address eligibility first
Availability maps, capacity limits, plan names, and rules can change. Enter the complete service address on the provider’s current availability page and read the plan’s geographic and capacity notes. Do not infer that a neighboring town, an old map, or a satellite visible from your location means an order is currently available. No current plan prices or competing-provider terms are established here, so confirm equipment charges, monthly fees, data policies, and installation options at checkout.
Then assess the physical sky view
A terminal needs a usable path to satellites over the portions of sky its network uses. Trees, roofs, walls, poles, cliffs, and other terrain can block that path. A technically covered address can therefore experience interruptions if the terminal is placed under a canopy, beside a tall building, or in a narrow gap between obstacles.
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Can trees or buildings block satellite internet?
Yes. An obstruction blocks or weakens the radio path at the moment a satellite is in that part of the sky. The terminal may switch to another satellite, but if available paths are also blocked, packets can be delayed or dropped. Short interruptions are especially noticeable in calls, gaming, remote desktop sessions, and live streams.
Use a placement survey before installation
- Stand where you intend to mount the terminal and look for tree crowns, rooflines, chimneys, poles, and nearby terrain across the visible sky.
- Use the provider’s obstruction tool to scan that location. Walk the phone around the proposed mount rather than scanning from a sheltered indoor position.
- Compare several locations: a roof, pole, balcony, or ground mast may have very different obstruction profiles.
- Allow for seasonal change. Trees that are open in winter can fill in during spring and summer, and future construction can create a new blockage.
- Mount only after checking cable routing, grounding, wind exposure, and the manufacturer’s approved hardware. A mount can improve the terminal’s view at an eligible address, but it cannot create service where the provider has no capacity.
Does rain affect satellite internet?
Significant precipitation can attenuate radio signals. Starlink’s support guidance states: Significant weather can cause service degradation due to attenuation of the radio signals.
Its weather article specifically warns that moderate to heavy rain, snow, and hail can cause momentary dropouts. The effect depends on storm intensity, the radio frequency and path, terminal installation, network route, and conditions near the provider’s ground stations.
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There is no universal rainfall threshold or guaranteed outage duration. A brief shower may have no noticeable effect, while intense rain or wet, heavy snow can reduce link margin enough to interrupt service. Hail and snow accumulation can also interfere with the terminal itself. Service may recover as conditions pass, but neither recovery time nor uninterrupted operation can be promised for every storm.
Ground-station weather matters too
Your sky may be clear while a gateway elsewhere is under a severe storm. If the route serving your terminal uses that gateway, weather there can affect capacity or the radio link even though nothing is falling at your house. Inter-satellite routing can change which gateway is used, so the impact is network- and route-dependent.
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- Confirm serviceability: Check the provider’s current address map and plan rules before buying hardware.
- Choose the highest practical clear location: Remove nearby obstructions from the terminal’s view rather than relying on satellite switching.
- Use approved mounts and cable paths: Protect connectors from water, follow bend-radius guidance, and secure the cable against wind and abrasion.
- Provide stable power: A weather event or an undersized backup system can look like a satellite fault when the terminal simply loses power.
- Test at busy times: Run latency and speed tests during the evening peak, not only in the middle of the day.
- Separate Wi-Fi from satellite performance: Test with Ethernet or close to the router before blaming the satellite link for an indoor dead zone.
What to do when service drops
If the interruption happens only during storms
Check local rain, snow, or hail and look for buildup on the terminal. Wait for conditions to ease, then verify that power and connectors are dry and secure. Repeated weather-related interruptions may justify a clearer mounting position or a review of the provider’s weather guidance, but there is no single fix that removes attenuation in every storm.
If the interruption happens in clear weather
- Check the provider app for an obstruction alert and review the obstruction map.
- Inspect the terminal’s field of view for new foliage, construction, or a shifted mount.
- Confirm that the router and terminal have power and that cables are fully seated.
- Test over Ethernet to rule out local Wi-Fi interference.
- Compare a nearby internet destination with the application that failed. A single website, game server, or video service can have its own outage or congested route.
- If the problem persists, record times, weather, obstruction alerts, and test results for the provider’s support team.
How to compare satellite services without misleading yourself
Use the same decision axes for every provider and attach a date and location to every number.
| Question | Why it matters | What to verify |
|---|---|---|
| Which orbit and network design? | Orbit height changes propagation distance; inter-satellite links and gateway layout change routes. | LEO, MEO, or GEO design; gateway geography; stated use of optical links. |
| What latency is typical at my address? | Advertised ranges may be aggregates or company estimates. | Measurement date, peak/off-peak window, geography, plan, and whether the figure is RTT. |
| Is my address accepting orders? | A regional footprint does not prove capacity at one home. | Current address lookup, wait-list status, and plan restrictions. |
| How clear must the sky be? | Obstructions can cause drops even inside a coverage area. | Mounting orientation, app-based obstruction test, and installation requirements. |
| How does weather affect it? | Rain, snow, hail, and gateway storms can reduce availability. | Provider’s attenuation guidance, equipment protection, and support process. |
| What are the real service limits? | Priority rules and congestion can change busy-hour performance. | Plan speed range, data or priority policies, equipment cost, installation cost, and monthly charge for your market. |
Starlink’s current company material is useful for understanding one LEO network, but it does not establish that every satellite provider has the same latency, weather tolerance, hardware, or plan rules. Treat each provider’s map and specifications as address- and date-specific evidence.
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Key takeaways
- Satellite internet is a complete route from your router to a satellite, a gateway or inter-satellite path, the provider’s terrestrial network, and the destination; the satellite hop is not the whole latency story.
- Higher orbit means a longer propagation path, while routing, scheduling, processing, congestion, Wi-Fi, and the destination determine the final RTT.
- Coverage maps show where a provider may sell service. They do not guarantee a clear sky view or uninterrupted operation at a particular home.
- Automatic satellite switching can reduce obstruction effects, but trees, buildings, and terrain can still cause brief outages.
- Heavy precipitation can attenuate the radio link, and storms at remote gateways can affect some routes.
- Every speed or latency claim should carry its provider, geography, measurement window, date, and plan context.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
