Test 1

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Across
  1. 4. ---- is used for sound signal modulation in SECAM
  2. 5. 1 frame is made up of 2 ----
  3. 8. ---- which is related to picture quality is less in NTSC compared to PAL and SECAM
  4. 11. Colour ---- circuit isolates chroma band pass amplifier during black and white transmission
  5. 12. this circuit is used to remove amplitude variations in a black and white TV receiver
  6. 15. Frequency ---- is the principle used to fit colour signal in the bandwidth of black and white TV
  7. 17. colour ---- signal is sent on the back porch of HBP in colour TV
  8. 18. ---- AGC and delayed AGC are present in TV receiver
Down
  1. 1. the receiving antenna used for black and white TV
  2. 2. ----is not present between the 2 colour difference signals in SECAM
  3. 3. type of polarization used in black and white TV
  4. 4. 585 are the no. of ---- lines in a frame
  5. 6. gain and ---- of the receiver depends on IF stage
  6. 7. ---- modulation technique is used in TV, so that the noise should not appear as white spots
  7. 9. VSB ---- is used to equalize amplitudes of SBs
  8. 10. the colour receptors in human eye are ----
  9. 13. interlaced scanning is used to avoid ----
  10. 14. 5.5 MHz ---- circuit used to separate sound from picture
  11. 16. 4:3 is the ---- ratio used for black and white TV
  12. 17. ---- is used for impedance matching between twin lead wire and the TV