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User / TomBenedict
Tom Benedict / 1,988 items

N 0 B 115 C 2 E Dec 21, 2017 F Dec 21, 2017
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Maunakea and Maunaloa after the latest winter storm out here in sunny Hawaii.

Tags:   Maunakea Maunaloa Snow Winter Hawaii Tropical

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The wind protection, copied from a design by Chris Owens, uses a length of shock cord rolled into the hem around the edge. Once the circle is made, the shock cord is pulled tight (but not too tight!) and is tied off. The knot tucks up inside the hem.

Tags:   DIY Audio DIY Microphone Parabolic Microphone

N 3 B 118 C 3 E Dec 19, 2017 F Dec 19, 2017
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Turns out the foam on the lollipop really didn't add enough in the way of wind protection. (Foam never does. It NEVER DOES!) This was a thin and very breathable one-fuzzy-sided fleece I found at the local fabric store. The folks there are now quite used to my showing up with infrared cameras, UV light source, and now... breathing through fabrics to find out how well they'll pass pressure waves.

At one point I asked them why they never reacted to any of the weird stuff I did. "Honey," they told me, "You don't even show up on our weird radar. Trust us." I'm in heaven!

Tags:   DIY Audio DIY Microphone Parabolic Microphone

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The drill handle had a little doodad out on the side to hold a depth rod. I had no need for the depth rod, so I used that little doodad to mount a reflex sight. I had to make a riser to bring the sight up enough to clear the clamping disks, but that also gave me the ability to adapt it to the Weaver rail I used to mount the sight. All in all it worked out great.

And wound up being completely useless once I added the extra layer of wind protection on the outside of the dish.

Tags:   DIY Audio DIY Microphone Parabolic Microphone

N 0 B 90 C 4 E Dec 19, 2017 F Dec 19, 2017
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The microphone completed and in the field.

This was great weather for photography (soft light, filled shadows, no harsh highlights), but wasn't much good for recording (rain on the dish sounds like rain on a tin roof.) Still, the birds were having a grand old time.

Tags:   DIY Audio DIY Microphone Parabolic Microphone


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