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