BHARATH B

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Across
  1. 4. Signal called high frequency
  2. 7. Signal which travel through air
  3. 9. Human voice
  4. 10. Signal which cannot travel through air
  5. 11. Sharing one thoughts
Down
  1. 1. Signal which comes after the modulation process
  2. 2. No boundary
  3. 3. Combination of transistor and reciever
  4. 5. It convert one form of energy to another
  5. 6. Signal called low frequency
  6. 8. Process used to reduce the height of the antenna and multiplexing