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Re: [OT] a radar-like tracking device



On 2010年09月30日 23:34, Zhang Weiwu wrote:
  • If it works outdoor it's enough. No need to use indoor.
  • If it can find the 'partner' in 150 meters it's good enough. 300 meter even better. Longer not needed.

  • In fact, consider the low requirement of the application, a simple device like this will do:
    1. have a button on one device
    2. have a beep device on the other
    3. if I press the button it give a short beep so loud that I can hear in 150 meters
    Then I will be able to use the nature radar: my hearing ability, to locate the object. It's actually pretty precious, precious for my scenario. With a single beep I have both angel information and distance information. (To not to bother others too much, using a recorded dog bark instead of a beep would be helpful.)



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