# '''Acquisition and Encoding of data:''' Different types of data gathered by the OBC which need to be transmitted to the ground-station. Further, this data needs to be encoded/packeted.
# '''Modulation of data:''' Now this data needs to be modulated on the desired carrier frequency.
::#* After the acquisition of data, we have to do baseband processing. Here 'baseband' refers to the original frequency range of a transmission signal before it is converted, or modulated, to a different frequency range. For example, an audio signal may have a baseband range from 20 to 20,000 Hz which is modulated to a frequency in between 80 MHz to 108 MHz for FM modulation (all the popular radio stations operate in this range). Here depending on your data and modulation type you may need to use Digital to Analog Converter (DAC) to achieve your desired data type that you need to transmit.
::* Further, we have to do up-converting of signal to carrier frequency.
# '''Conditioning the signal:''' Here we have to accomplish two basic tasks related to conditioning of signal: