ssb add on for am receivers


Posted on Feb 6, 2014

Given favourable radio wave propagation, the shortwave and radio amateur band are chock-a-block with SSB (single-sideband) transmissions, which no matter what language they`re in, will fail to produce intelligible speech on an AM radio. SSB is transmitted without a carrier wave. To demodulate an SSB signal (i. e. turn it into intelligible speech) i


ssb add on for am receivers
Click here to download the full size of the above Circuit.

t is necessary to use a locally generated carrier at the receiver side. As most inexpensive SW/MW/LW portable radios (and quite a few more expensive general coverage receivers) still use plain old 455 kHz for the intermediate frequency (IF), adding SSB amounts to no more than allowing the radio`s IF to pick up a reasonably strong 455-kHz signal and let the existing AM demodulator do the work.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Pwm motor speed control
    Analog multiplier
    Peak-db-meter
    Beat Balance Metal Detector
    USB li-ion charger revision
    3 V/5 V Low Power Synchronous Voltage-to-Frequency Converter
    Vintage Remote TV-B-Gone Case Mod
    HA250A application circuit



    Top