A transponder will send an identifying coded signal in response to a transmitted interrogation from a ground-based radar station . An air traffic controller can then view the identified blip on a screen and know who it is and provide direction to the flight crews maintaining adequate separation with other blips.
Read moreWhat are types of transponders?
Basically, there are two types of transponders. Those are Bent pipe transponders and Regenerative transponders .
Read moreWhat is transponder used for?
A transponder is a wireless communications, monitoring, or control device that picks up and automatically responds to an incoming signal . The term is a contraction of the words transmitter and responder.
Read moreHow many MHz is a transponder?
Each of this transponder occupy part of the total satellite bandwidth (BW) i.e. 500 MHz . Figure-1 depicts transponder channels with each utilizing 36 MHz of bandwidth from the total BW of 500 MHz. The guard band of 4 MHz is provided between transponders to avoid interference.
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.
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