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Total 3 documents matching your query.

1. [RFI] Ultrasonic receivers (score: 1): Author: k5uj@hotmail.com (Rob Atkinson, K5UJ); Date: Wed, 20 Mar 2002 22:56:31 +0000; Hi everyone: Has anyone had any experience using an ultrasonic receiver of some sort to find an arc? American Science and Surplus sells an ultrasonic receiver kit for 18 or 19 bucks. I have not tried; /archives//html/RFI/2002-03/msg00043.html (7,523 bytes)
2. [RFI] Ultrasonic receivers (score: 1): Author: wa2bpe@exotrope.net (WA2BPE); Date: Wed, 20 Mar 2002 18:15:48 -0500; I recently found a web page describing an "ultrasonic reciever" for monitoring bat signals. I do know that Mouser has cheap ($5) transducers for the 40-50KHz range available which just might work in; /archives//html/RFI/2002-03/msg00044.html (8,630 bytes)
3. [RFI] Ultrasonic receivers (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Thu, 21 Mar 2002 09:09:56 -0600; Hi Rob, Yes, we use an Ultrasonic parabolic detector (UltraProbe 2000) here at work to confirm noisy power poles and determine what exact piece hardware is causing the noise. They're also used in ot; /archives//html/RFI/2002-03/msg00045.html (9,221 bytes)

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