The same is explained below with the use of the block diagram.
C band satellite transponder block diagram.
The block diagram of transponder we can easily understand the operation of transponder from the block diagram itself.
The function of each block is mentioned below.
Signals traveling from earth to satellites must travel through the atmosphere.
An input band limiting device an input band pass filter.
8 m 10 m.
Usually in geo operate at the c band around 6 ghz.
It is mainly used in satellite communication to transfer the received signals.
The block diagram of transponder is shown in below figure.
The block diagram of transponder is shown in below figure.
Rain attenuation and sky noise is low at 4 ghz downlink frequency of c band.
As shown in the figure satellite transponder receives signal of say 6175 mhz from the earth it converts the same to 3950 mhz by substracting it using lo of 2225 mhz.
Extended c band communications satellite wi ll be examined briefly here.
Explain simplified block diagram of satellite transponder 1 single convention in c band 2 double conversion in ku band.
A communications satellite s transponder is the series of interconnected units that form a communications channel between the receiving and the transmitting antennas.
Duplexer is a two way microwave gate.
A block diagram of a transponder.
The number of transponders or channels indicates the capacity of the satellite.
This is for c band satellite band.
The basic block diagram of an vsat earth station transmitter is as shown in fig 2.
The function of each block is mentioned below.
1 duplexer is a two way microwave gate.
Maurizio di paolo emilio.
It receives uplink signal from the satellite antenna and transmits downlink signal to the satellite antenna.
Satellite transponder does this operation.
The ttc transponder on the spacecraft plays the role of radio frequency interface with the ground.
Each transponder is amplified by either a travelling wave tube am plifier twta or a solid state power amplifie r.
Block diagram of a typical ttc transponder.
Satellite communication system block diagram.
A transponder is typically composed of.
Extended c band is most popular because of less propagation problem.
The two way communication is established with the help of transponder a com satellite has multi transponder per satellite has in creased over the year a satellite with 2 transponder can support a signal t v channel or 240 telephone lines a satellite with 48 transponder can accommodate 4000t.
We can easily understand the operation of transponder from the block diagram itself.
So it is possible to build a receiving system.
May 2012 dec 2012.
The communication is through a telecommunication link established between the control station on the ground and the satellite.
