DIGITAL MODULATION

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Across
  1. 2. In this frequency hopping technique, several symbols are transmitted per each hop
  2. 4. The phase difference between two symbols are 180 degrees.
  3. 5. It is also called on-off keying
  4. 8. In this frequency hopping technique, the frequency will change several times for one symbol.
  5. 10. In this transmission the digital data is modulated on to a carrier wave
  6. 11. This is a periodic sequence with noise like waveform.
Down
  1. 1. The detection method in which the receiver is phase locked to the transmitter.
  2. 3. The psk in which two bits are transmitted per symbol
  3. 6. The security of transmission is achieved by doing _____ of the signal'
  4. 7. The number of symbols transmitted per second
  5. 9. The two symbols are transmitted with two different frequency.