A frequency counter of sorts

Discussion in 'General Electronics Chat' started by LeeS, May 20, 2011.

  1. LeeS

    Thread Starter New Member

    May 19, 2011
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    Hi im after a frequency counter or similar that will detect and display radio transmissions that are not on the usual "audible" wavelength .

    Please excuse my lack of terminology, I really dont have much of a clue when it comes to these things.

    At home I have a radio scanner with "Close Call", when it detects a radio transmission it will automatically tune into it and let me listen. Im after making something that will let me know of other radio transmission that cant be heard. For example I live behind electronic gates that open when you click the clicker and it opens the gates. I'm wanting an alert and for it to let me know the frequency of the transmission.

    Im not wanting to do anything with it, ive just become sadly obsessed with my scanner and all the transmissions that are local to me!

    Can this be done?

    This is the spec of my scanner, so you can see what I can already detect.

    http://www.uniden.com/products/productdetail.cfm?product=SC230&filter=Nascar
     
  2. KJ6EAD

    Senior Member

    Apr 30, 2011
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    LeeS likes this.
  3. LeeS

    Thread Starter New Member

    May 19, 2011
    5
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    Thanks that looks exactly what im after.
     
  4. LeeS

    Thread Starter New Member

    May 19, 2011
    5
    0
    Ive had a good look into these and they look like very serious bits of kit, not ideal for a first project. So ill skip on this for now.
     
  5. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    Serious Spectrum Analyzers are expensive, more so than a oscope, but as the name suggests they cover a wide area of the RF or audio spectrum.
     
  6. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,387
    1,605
    We've got an expensive serious spectrum analyzers at work.

    One guy has been having fun showing the new digital TV signals on it.
     
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