FM Multiplexing for Stereo |
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Page 16
... recovered would look like Fig . 1-12 - almost all second - harmonic distortion ( with some higher order harmonics thrown in ) . None of the 400 hertz would be recovered at all . Reinsertion of Subcarrier - There is one approach by which ...
... recovered would look like Fig . 1-12 - almost all second - harmonic distortion ( with some higher order harmonics thrown in ) . None of the 400 hertz would be recovered at all . Reinsertion of Subcarrier - There is one approach by which ...
Page 37
... recovered after de - emphasis instead of being extracted ahead of it , our 19 - kHz pilot carrier would be some 20 dB lower in amplitude . Thus , if 0.1 volt of 19 kHz were available from the composite signal just after the dis ...
... recovered after de - emphasis instead of being extracted ahead of it , our 19 - kHz pilot carrier would be some 20 dB lower in amplitude . Thus , if 0.1 volt of 19 kHz were available from the composite signal just after the dis ...
Page 131
... recovered 1 - kHz sine wave , whereas the null channel should have virtually no output . Final trimming may be ... recovered signal upward or downward until it equals the subcarrier- sideband recovered signal ( LR ) . STEP - BY - STEP ...
... recovered 1 - kHz sine wave , whereas the null channel should have virtually no output . Final trimming may be ... recovered signal upward or downward until it equals the subcarrier- sideband recovered signal ( LR ) . STEP - BY - STEP ...
Contents
ANALYSIS OF THE FM STEREO SIGNAL | 7 |
CHAPTER 2 | 24 |
CHAPTER 3 | 48 |
Copyright | |
5 other sections not shown
Common terms and phrases
19-kHz amplifier 19-kHz pilot carrier 19-kHz pilot signal 19-kHz signal 38-kHz carrier 38-kHz doubler 38-kHz oscillator 38-kHz subcarrier adjustment alignment amplitude amplitude modulation antenna applied attenuation bandpass filter capacitor collector circuit connected coupled de-emphasis decoder circuit decoder section demodulating diodes demodulation demodulator circuit distortion emitter equipment fm stereo frequency modulation function hertz incoming 19-kHz input L-only left and right left channel listening local oscillator low-pass filter main channel maximum microvolts Model mono monophonic multiplex adapter multiplex circuitry multiplex decoder noise oscilloscope output percent phase shift position program material quency reception recovered resistor resonant circuit right channel SCA subcarriers scope selector switch separation control shown in Fig sine wave speaker squelch station stereo broadcasting stereo fm stereo receiver stereo separation stereo signal stereophonic subcarrier sidebands subchannel switching circuit tion transistor transmission transmitter tuned circuit tuner or receiver volt volts vtvm waveform