rf transmitter/reciever circuit pair for on/off

Discussion in 'Wireless & RF Design' started by barath1elec, Mar 22, 2011.

  1. barath1elec

    Thread Starter New Member

    Oct 28, 2010
    Am new to rf circuits,ie. only of little knowledge.
    I need a radio controlled (rf) transmitter/reciever circuit pair.
    Working in the frequencies of 27mhz, 35 r 45 mhz. or as suitable
    of my question. The lenght range of my tx/rx can be of few meters
    from 4-5mts.
    The overall circuit voltage is of a small operating voltages.
    3-5v for transmitter and 3-6v for receiver.
    Only a basic simple form of circuit i need.
    Because i need both to be small in size.
    The transmitter can have a single switch r button.
    The receiver must r just give an output of a single pulse
    whenever the transmitter button is pressed.
    The output pulse will be used to trigger a flip flop for turning the
    rest of the circuit for power control.

    so i need a circuit of components which could fetched easily.
    please, i need ur helps.
  2. HallMark


    Apr 3, 2011
    You can use RF modules as there are lot of companies manufacturing RF modules on different frequencies. You can select one transmitter and one receiver working on the same frequency or go with Transceiver, this is what i think if i want to ON OFF or control my Appliances.
  3. radiohead

    Senior Member

    May 28, 2009
    You can harvest working TX and RX pair from a working RC car