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3413Re: [probe_control] Scanner Power

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  • probecontrol@sigecom.net
    Dec 1, 2005
      I'm about as far as one could get from an engineer too, Dino--
      but the implications sound fascinating!

      It's not 'babbling' at ALL! Thanks for sharing your thoughts
      with the list!

      Jim Alexander
      ==================================
      >Greetings, All,
      >
      > I had a thought the other day; working with electronics
      for so
      >long one doesn't stop to actually "think" of the basics
      anymore, it
      >becomes just routine & one ignores it much like one ignores
      tying
      >shoes (it happens almost on its own).
      >
      > Anyway, since the scanner is magnetic, assuming the
      magnet is at
      >the back where it "attaches" to the ring, neck chain, etc.,
      a coil of
      >fine wire wrapping around the inside of the casing - such as
      one for
      >its antenna - would be subjected to the magnet's lines of
      flux
      >(technical term for magnetic field).
      >
      > Anyone familiar with basic electronics (or electricity)
      knows that
      >a wire coil exposed to a megnetic field in just the right
      way has a
      >voltage induced into the coil. While something on the
      scanner's scale
      >wouldn't produce all that much power, it might provide
      enough for the
      >scanner to "idle" on its own when it's not receiving power
      >transmission from Probe Control. Those transmissions (in the
      form of
      >radio waves) could feasibly provide the extra power needed
      for normal
      >scanner operation as they also induce voltage in the antenna
      coil.
      >(Like ordinary radio waves provide the power for crystal
      radio
      >reception - no power source other than the radio signal yet
      the
      >crystal receiver still works.)
      >
      > I'm not an engineer & even thinking about how it would
      all work
      >together with the varying power levels Control sends out to
      operate
      >the different scanner functions makes my brain hurt. But the
      theory
      >seems somewhat realistic.
      >
      >Well, enough of my babbling for now.
      >End Run,
      >Dino
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