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Search and rescue (lemmy.today)
submitted 12 hours ago by to c/microblogmemes@lemmy.world
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[–] 3 points 10 hours ago (11 children)

Who gives a shit about nets those things have infrared heat detection.

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  • [–] 5 points 8 hours ago (6 children)

    That's why you need to use a survival blanket as an inner layer to reflect the heat, some neutral-colored canvas as a middle-layer, and the camo netting as an outer layer. Preferably with a few inches of separation between each one.

    Maybe add in some faraday fabric if you have anything that emits signals

    And an SDR on a raspberry pi with some python libraries to scan for incoming threats.

    It's not perfect but it's better than being a sitting duck

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  • [–] 2 points 7 hours ago (3 children)

    Hmmm. Problem I see with that is the thermal blanket reflects IR away from itself, so if you are inside of it, you still heat up.

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  • [–] 2 points 7 hours ago (2 children)

    Yes, and that keeps the warmth inside the tent, so that it's not visible to IR from the outside.

    You can test it first if you have an IR lens. If you're handy with solder you can build one with parts from arduino, mouser or similar

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  • [–] 4 points 7 hours ago (1 child)

    Oh, I meant that it essentially gets hotter over time. If you're on the move, that could become a problem pretty fast

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  • [–] 1 point 6 hours ago*

    Oh yeah, I was thinking if you had to hide a whole base of operations, command post, resupply depot, or sentinel outpost.

    If you're on the move in a scenario like this, then you'd need to have some means of taking down a drone, and hope to high hell you won't need to use it.

    Mud is a decent insulator so you could smear yourself with that. In the winter you could wear quilted fabrics under a windbreaker. Basically the more insulation keeping the cold off your skin, the more it's keeping your body heat from being visible to IR.

    I also think glass blocks heat radiation to some degree, so maybe using that as some type of parasol or shield, but that might be less feasible. Lining an umbrella with a survival blanket might be possible, but again test it with your own IR lens to be sure

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