Satellites communicate by using radio waves to send signals to the antennas on the Earth . The antennas then capture those signals and process the information coming from those signals.
Read moreWhat is the example of satellite communication?
Telephone, radio, television, internet, and military applications use satellite communications.
Read moreWhat type of communication is a satellite used for?
Satellites provide in-flight phone communications on airplanes, and are often the main conduit of voice communication for rural areas and areas where phone lines are damaged after a disaster. Satellites also provide the primary timing source for cell phones and pagers.
Read moreWhat is the speed of satellite signals?
Radio waves are used to carry satellite signals. These waves travel at 300,000 km/s (the speed of light). This means that a signal sent to a satellite 38,000 km away takes 0.13 s to reach the satellite and another 0.13 s for the return signal to be received back on Earth.
Read moreWhat are transponders in satellite systems?
The term “satellite transponder” refers collectively to a transmitter-receiver subsystem on board the satellite that processes, amplifies and retransmits a range of frequencies (the transponder bandwidth) to another location/terminal/antenna on the earth .
Read moreHow much bandwidth accommodate for each transponder in C band?
The bandwidth allocated for C band service is 500 MHz , and this is divided into sub bands, one for each transponder. A typical transponder bandwidth is 36 MHz, and allowing for a 4-MHz guard band between transponders, 12 such transponders can be accommodated in the 500-MHz bandwidth.
Read moreWhat is transponder frequency?
In a transponder the transmit carrier frequency is derived from the received signal . The frequency linkage allows an interrogating ground station to recover the Doppler shift and thus infer range and speed from a communication signal without allocating power to a separate ranging signal.
Read more