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Can you get crisper photos for this article? These are too blurry.
If you are referring to the tiny circles on the PIR dome, they are Fresnel lenses that help focus the IR on the sensors. *As I understand it,* any movement of a heat source causes the focus to shift over the 2 sensors built into the device. That change is what the device detects/signals.
Thank you.I have been regretting not buying a "Globe Patrol" when I was younger for decades. I love the portability of the design (small case & battery powered).Please consider using a low-profile case, similar to the cases Ramsey kits uses for their SW kits. It might make a good update - especially for campers like myself.
Can you do anything about resurrecting the "Science Fair "Globe Patrol" regenerative radio"? It was more complicated, but more capable too.
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