Figure 1-5. Satellite Communications Link

TM 11-5895-1179-13 * EE132-EA-OMP-010/E106 KY883 * TO 31S1-2GSC-161

b. Encoder-Decoder Application-Characteristics. As shown in figure 1-5, two encoder-decoders are needed to

complete a satellite communications link. The encoder portion of the modem accepts data from the data source,

conditions the data, and then sends the data to the KY-883 encoder at the transmit end of the link. The convolutional

encoder adds redundancy to the data stream. Additionally, the encoded data is interleaved to provide the necessary burst

error protection. At the receive end, the KY-883 decoder uses this redundancy to correct almost all errors that were

introduced by the channel.

Figure 1-5. Satellite Communications Link

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