How Are Satellites Used for Communication?
Blast-Off In order to communicate, satellites must first be placed in the Earth’s orbit. That typically happens by sending a satellite up with a space shuttle. Once in space–most commonly about 23,000 miles above the Earth’s surface–the satellite’s internal gyroscope is set spinning. The gyroscope ensures that the satellite will not spin out of the Earth’s orbit. The satellites are powered by solar panels or small nuclear reactors. Back and Forth Satellites receive transmissions from Earth stations and then retransmit back to other Earth stations. The process of receiving information is called an uplink, while the process of transmitting to Earth is called a downlink. Making Space in Space Communication satellite transmissions are carried on two bands of frequencies, C-band and Ku band. C-band frequencies, which are used by most communication satellites, range between 4 billion and 6 billion cycles per second. This is expressed as 4GHz to 6GHz (gigahertz). C-band satellites are mainl
Related Questions
- For physician hand-offs, does the same process have to be used throughout the hospital. Can different specialties use different methods of communication within their call group?
- Can the packaging labels for abutments be used for patient records/communication forms similar to the implants?
- How Are Satellites Used for Communication?
