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Detection of electronic device

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electronictarget

Jul 29, 2022
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How do I determine if an electronic device is in my home or car such as the Ultrasonic Pain Field device. How can I detect it if the handheld one is being used on me? What type of detection device would work best?
 

bertus

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Nov 8, 2019
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Hello,

Have a look at a bat detector.
Bats will make ultrasonics sound.

Bertus
 

CircutScoper

Mar 29, 2022
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Hello,

Have a look at a bat detector.
Bats will make ultrasonics sound.

Bertus

Very painful, too -- if you're a bug.

bat-catching-moth.jpg
 

John Canon

Jun 1, 2022
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I once wired a small ultrasonic speaker as a microphone, and fed the signal into an oscilloscope. I tested it on one of those rodent repellers and, yes, it showed the signal. I could also calculate the frequency, about 40 kHz.
 

AnalogKid

Jun 10, 2015
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How do I determine if an electronic device is in my home or car such as the Ultrasonic Pain Field device.
Why? Why do you think you are being targeted?

Also, please provide a link to the type of device you are concerned about, so we have some context for the tech details. "Ultrasonic" is not enough.

ak
 

John Canon

Jun 1, 2022
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Sorry to hear about your 2 dogs. Probably not caused by any device, but you could build the detector I had described just to be sure. And save the shielding for yourself.
 

davenn

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Sep 5, 2009
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closing this thread, it's got a bit silly
and moving it to the Twilight Zone section
 
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