C Band Satellite Transponder Block Diagram

An input low noise amplifier lna designed to.

C band satellite transponder block diagram.

A block diagram of a transponder. Extended c band is most popular because of less propagation problem. The number of transponders or channels indicates the capacity of the satellite. Satellite transponder does this operation.

8 m 10 m. Maurizio di paolo emilio. 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. An input band limiting device an input band pass filter.

The function of each block is mentioned below. It is mainly used in satellite communication to transfer the received signals. A communications satellite s transponder is the series of interconnected units that form a communications channel between the receiving and the transmitting antennas. 1 duplexer is a two way microwave gate.

Signals traveling from earth to satellites must travel through the atmosphere. It receives uplink signal from the satellite. The ttc transponder on the spacecraft plays the role of radio frequency interface with the ground. Explain simplified block diagram of satellite transponder 1 single convention in c band 2 double conversion in ku band.

Satellite communication system block diagram. A transponder is typically composed of. Why do some satellites have two transponders while others have twenty four. The function of each block is mentioned below.

The block diagram of transponder we can easily understand the operation of transponder from the block diagram itself. The block diagram of transponder is shown in below figure. Extended c band communications satellite wi ll be examined briefly here. We can easily understand the operation of transponder from the block diagram itself.

The communication is through a telecommunication link established between the control station on the ground and the satellite. The basic block diagram of an vsat earth station transmitter is as shown in fig 2. So it is possible to build a receiving system. Duplexer is a two way microwave gate.

It receives uplink signal from the satellite antenna and transmits downlink signal to the satellite antenna. 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. The block diagram of transponder is shown in below figure.

Each transponder is amplified by either a travelling wave tube am plifier twta or a solid state power amplifie r. Usually in geo operate at the c band around 6 ghz. The same is explained below with the use of the block diagram.