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Consumer Electronics by S. P. Bali

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SYSTEM PARAMETERS (FOR STANDARDS B/G)
Parameters Channel – 1 Channel – 2
IRF sound carriers    
IF Frequencies fvision + 5.5 fvision + 5.7421875
  MHz (+/–500 Hz), eqvt. to 353 fh MHz (+/–500 Hz).
Vision/sound power ratio 13 dB 20 dB
Modulation FM FM
Frequency deviation max. M +/–50 kHz < + /–50 kHz
nominal value +/–30 kHz +/–30 kHz
Pre-emphasis 50 μs 50 μs
AF bandwith 40 to 15000 Hz 40 to 15000 Hz
Sound Modulation  
Mono mono mono
Stereo (L + R)/2 = M R
Dual sound mono Channel A Channel B
Identification    
Pilot carrier frequency 54.6875 kHz (+/–5Hz) Eqvt. to 3.5 fh)
Modulation AM (with identification frequency)
Modulation depth 50%
Identification signal    
Mono none
Stereo   (fh/133 =) ...

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