🌐 Entity
Communications satellite
Artificial satellite that relays radio signals
📊 Rating
1 news mentions · 👍 0 likes · 👎 0 dislikes
📌 Topics
- Emergency Technology (1)
- Outdoor Safety (1)
- Satellite Communication (1)
🏷️ Keywords
iPhone Emergency SOS (1) · Satellite communication (1) · Avalanche rescue (1) · Remote emergency help (1) · Cell tower coverage (1) · Outdoor safety technology (1)
📖 Key Information
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. Some communications satellites are in geostationary orbit 22,236 miles (35,785 km) above the equator, so that the satellite appears stationary at the same point in the sky; therefore the satellite dish antennas of ground stations can be aimed permanently at that spot and do not have to move to track the satellite.
📰 Related News (1)
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🇺🇸 Satellite Feature on iPhone Allowed Skiers to Seek Help After Avalanche
The Emergency SOS feature on iPhones can send texts to emergency responders via satellite when there is no cell tower nearby....
🔗 Entity Intersection Graph
People and organizations frequently mentioned alongside Communications satellite:
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Avalanche rescue · 1 shared articles