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Transferring bits over FM ?

Discussion in 'Misc Electronics' started by Myraddin, Jul 23, 2007.

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  1. Myraddin

    Myraddin Guest

    I will try to be brief.

    I am just wondering where to post my question about creating small FM
    transceiver and receiver (separate) which would send / receive a couple
    bits of data.

    Which newsgroup can help me?

  2. MooseFET

    MooseFET Guest

    Likely this one would. Doing data on an FM link is actually fairly
    simple. If the data rate is low, an existing radio and an FSK signal
    is an easy way to go.
  3. EdV

    EdV Guest

    How long of a distance?
  4. Guest

    If you want to make life easy, just buy an RF data link from Sparkfun
    Electronics ( for about $14. I have used these.
    They work great and are very simple to interface to. I'm assuming, of
    course, that you aren't doing this to learn about RF circuit design.

  5. Guest

    BTW - If you're interested, I have a circuit design that uses 8-bit
    shift registers and those RF data links to continuously transfer 8
    discrete bits from one end (of the RF link) to the other. It's very
    cool - turn on the bit at one end and it comes out the other very
    quickly. Let me know. I could email the design to you.

  6. Myraddin

    Myraddin Guest

    Home usage.
    (up to 100m ~ 300 ft)

  7. Myraddin

    Myraddin Guest

    Thanks for the link!
    I want to learn, but first I want to try if the concept works.
    (RF Link - 2400bps - 418MHz sounds great !)
    Oh. If only I could design such things ... :(
    I hope one day I will be able to be an electronics hobbyist like yourself.

    Thanks for the information

    P.S. Which group is better for this kind of interest? or .misc?
  8. Neither.

    The most appropriate place is sci.electronics.basics

    Read Mark Zenier's guide the sci.electronics.* hierarchy:

    INdeed, you should have done some work in the first place before
    cross-posting this message.

  9. Gary Tait

    Gary Tait Guest

    How many are a "couple" How cast are they going to change?

    for just a two or three that won't change often, I'd gate an audio
    oscillator per bit, and use a tone detector at the other end.

    For more than that, I'd serially send the bits over AFSK.
  10. Rich Grise

    Rich Grise Guest

    sci.electronics.basics .

  11. Myraddin

    Myraddin Guest

    Thank you for the information (and the link).
    I will look more carefully next time.
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