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  1. Thread: Bat detector

    by Craig
    Replies
    662
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    65,159

    Hi Edwin I will build the detector and play...

    Hi Edwin

    I will build the detector and play around with some parabolic shaped dishes. It will be a good learning exercise. I doubt that these units are using optimum parabolic shaped reflectors....
  2. Thread: Bat detector

    by Craig
    Replies
    662
    Views
    65,159

    This is what a professional Ultrasonic dish looks...

    This is what a professional Ultrasonic dish looks like, just out of interest. I believe it costs about 5000 US Dollars!
  3. Thread: Bat detector

    by Craig
    Replies
    662
    Views
    65,159

    Hi Mark Good thinking there however the weight...

    Hi Mark

    Good thinking there however the weight might be a issue. I am sure I can find a cheap "wok like object" made out out of cheap pot metal that melts in the rain for expirmentation. The local...
  4. Thread: Bat detector

    by Craig
    Replies
    662
    Views
    65,159

    Ultrasinic dish powerline noise

    Hi Edwin

    I believe that the MFJ is a 40khz FD detector. In relative terms its expensive for a such a simple device.

    I believe that a detector with broader frequency response that is not so...
  5. Thread: Bat detector

    by Craig
    Replies
    662
    Views
    65,159

    Anyone try the Bat detector with a parabolic dish...

    Anyone try the Bat detector with a parabolic dish to find powerline noise? I just wonder if would be sensitive enough to detect the weak discharges on powerline insulators.

    I am trying to track...
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