this post was submitted on 16 Mar 2024
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Damn, that's interesting!

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The radar can detect airborne ICBM warheads up to 2500 miles away.

Wikipedia

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[–] Skasi@lemmy.world 18 points 7 months ago* (last edited 7 months ago) (1 children)

The radar can detect airborne ICBM warheads up to 2500 miles away.

For reference, that's about 1/10th the circumference of the Earth.

In SI units that's about 4'000 kilometers. The Earth circumference is almost exactly 40'000 kilometers (by historical definition).

[–] agent_flounder@lemmy.world 8 points 7 months ago (1 children)

Guessing you don't want to be standing right next to the dome when it pings, then... 😳

[–] sawdustprophet@midwest.social 8 points 7 months ago

"One ping only, Vasily."

[–] homesweethomeMrL@lemmy.world 9 points 7 months ago* (last edited 7 months ago) (1 children)

What’s “x-band” mean

Edit: ah.

In radar engineering, the frequency range is specified by the Institute of Electrical and Electronics Engineers (IEEE) as 8.0–12.0 GHz. The X band is used for radarsatellite communication, and wireless computer networks.

Slightly less for comms eng.

[–] blterrible@lemmy.ml 3 points 7 months ago (1 children)

WiFi will probably creep in at the lower end of that soon. We're only 2Ghz away!

[–] aBundleOfFerrets@sh.itjust.works 2 points 7 months ago

WiGig was 60Ghz, I would bet we would take a second stab at that before picking a new range.

[–] doublejay1999@lemmy.world 8 points 7 months ago (1 children)
[–] sjmarf@sh.itjust.works 8 points 7 months ago

This is an old photograph from 2006, taken as the ship arrives at Pearl Harbour. The Radar was being moved from Corpus Christi, Texas.

[–] Kiosade@lemmy.ca 6 points 7 months ago (1 children)

Wait, is THAT what those do? I used to see a bunch of them in the hills around a major airforce base. Jokingly called them the “Epcot” spheres.

[–] sjmarf@sh.itjust.works 4 points 7 months ago* (last edited 7 months ago)

Yeah, they have a load of these radars at a military base near where I live in the UK. They’re called Radomes, but are commonly referred to as “The Golf Balls” around here lol

[–] worsedoughnut@lemdro.id 5 points 7 months ago (1 children)

How do they unload that? Do they kind of just tilt it into the water, or is there a giant crane freighter ship waiting at its destination?

[–] sjmarf@sh.itjust.works 19 points 7 months ago* (last edited 7 months ago) (1 children)

Blue Marlin is a semi-submersible ship, which means that it can lower itself partly underwater to allow its cargo to move on/off. The ship is designed primarily to move oil rigs around, with this being a special case. The radar itself is actually a converted oil rig.

Blue Marlin preparing to offload an oil rig:

[–] worsedoughnut@lemdro.id 2 points 7 months ago

Oh sick, thanks!

[–] AFaithfulNihilist@lemmy.world 5 points 7 months ago

They are really pulling out all the stops for the new "Raft" sequel.