Pulse-Frequency Modulated Receiver

  
This receiver uses an IR-sensitive phototransistor (Clairex, HP, etc.) mounted in a light-tight enclosur
Pulse-Frequency Modulated Receiver - schematic

e with an aperture for the incoming IR beam. An optical system can be used with this receiver for increased range. A 741 amplifies the pulsed IR signal and a 565 PLL FM demodulator recovers the audio, which drives an LM386 audio amplifier and speaker.



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News


  • Car and Driver (blog)
    Car and Driver (blog) With the departure of the raspy-sounding rotary engines and the introduction of the very quiet diesel, Mazda will go from having one of the loudest cars on the Grand- to one of the quietest. This doesn't mean the RX-8 wi
     22 June 2012

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