Across
- 3. EM waves can propagate through_________
- 8. Random undesired electrical energy interfering a signal
- 9. Converts message signal from medium into a form understandable by humans
- 12. Continuously varying signal
- 13. Process of modifying another high frequency signal
- 14. Original information signal
- 18. Barrier in human communication
- 20. Information to be sent is impressed over a _____ signal
- 21. Can both transmit and receive signal
Down
- 1. This type of signal can be modeled mathematically
- 2. Bandwidth of channel should be____than bandwidth of signal
- 4. Wireless communication
- 5. Signal defined for all values of ‘t’
- 6. This type of signal has finite non zero power
- 7. Original information signal is known as _______ signal
- 10. Physical medium through which signal is sent from one place to another
- 11. Difference between upper and lower frequency limit of a signal
- 15. Range of frequencies
- 16. Information travels in one direction in this system
- 17. Exchange of information
- 19. Converts message signal into electrical form