TP1

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Across
  1. 2. transducer output are generally term as
  2. 4. that convert one form of energy into another
  3. 8. A terrestrial pneumatic channel
  4. 9. one way communication
  5. 10. signal that lies in two levels
  6. 11. Exchange of information
  7. 13. used to receive information
  8. 14. interference between two channel
  9. 15. A medium of communication
Down
  1. 1. range of frequency from 300 MHz to 30 MHz
  2. 3. used to transmit the information
  3. 5. Two input signal are compared
  4. 6. a comparator that compare with zero reference value
  5. 7. a type of communication where medium is not needed
  6. 12. added in signal in channel