The function of each block is mentioned below.
C band satellite transponder block diagram.
Block diagram of a typical ttc transponder.
An input band limiting device an input band pass filter.
It is mainly used in satellite communication to transfer the received signals.
Rain attenuation and sky noise is low at 4 ghz downlink frequency of c band.
It receives uplink signal from the satellite antenna and transmits downlink signal to the satellite antenna.
A transponder is typically composed of.
8 m 10 m.
Why do some satellites have two transponders while others have twenty four.
A block diagram of a transponder.
Explain simplified block diagram of satellite transponder 1 single convention in c band 2 double conversion in ku band.
Maurizio di paolo emilio.
The block diagram of transponder is shown in below figure.
The number of transponders or channels indicates the capacity of the satellite.
The block diagram of transponder is shown in below figure.
Satellite communication system block diagram.
Signals traveling from earth to satellites must travel through the atmosphere.
So it is possible to build a receiving system.
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.
1 duplexer is a two way microwave gate.
Satellite transponder does this operation.
We can easily understand the operation of transponder from the block diagram itself.
Duplexer is a two way microwave gate.
This is for c band satellite band.
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.
The function of each block is mentioned below.
Extended c band is most popular because of less propagation problem.
Each transponder is amplified by either a travelling wave tube am plifier twta or a solid state power amplifie r.
It receives uplink signal from the satellite.
The same is explained below with the use of the block diagram.
The communication is through a telecommunication link established between the control station on the ground and the satellite.
The ttc transponder on the spacecraft plays the role of radio frequency interface with the ground.
Usually in geo operate at the c band around 6 ghz.
The basic block diagram of an vsat earth station transmitter is as shown in fig 2.
The block diagram of transponder we can easily understand the operation of transponder from the block diagram itself.
May 2012 dec 2012.
