[RFI] Noise location tools

Jim Brown jim at audiosystemsgroup.com
Wed Jan 17 12:02:02 EST 2018

On 1/17/2018 7:24 AM, Hare, Ed W1RFI wrote:
> There are three problems with the use of ultrasonic dishes:

Thanks Ed. I have no experience with these devices, but certainly 
understand the principles.

73, Jim K9YC

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