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China Communications United States

China's Balloon Was Capable of Spying on Communications, US Says (bloomberg.com) 152

The alleged Chinese spy balloon that flew over the US was capable of collecting communications signals and was part of a broader People's Liberation Army intelligence-gathering effort that spanned more than 40 countries, a State Department official said Thursday. From a report: High-resolution imagery provided by U-2 spy planes that flew past the balloon revealed an array of surveillance equipment that was inconsistent with Beijing's claim that it was a weather device blown off course, the official said in a statement provided on condition of anonymity. The statement, released before State and Defense Department officials appeared before Congress in open hearings and closed briefings on Thursday, marks the fullest accounting yet for the Biden administration's insistence over the course of a week-long drama that the balloon was meant to spy on the US. Defense Secretary Lloyd Austin said in an interview with CBS News that the Pentagon acted to limit what the balloon could learn about US nuclear capabilities.
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China's Balloon Was Capable of Spying on Communications, US Says

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  • Why a balloon and not a satellite.

    • by Junta ( 36770 ) on Thursday February 09, 2023 @03:14PM (#63279731)

      Range and loitering.

      Satellites orbit fast, so you need a bit of a constellation to keep up sustained surveillance on an area.

      Being closer also means you can get more radio signal and easier visuals. Note that if you look at 'satellite' view of an urban area, you are getting aerial imagery. Go out to the boondocks and see how low-res things get to see what is more reasonable with satellite. You can do better than that, but broadly speaking the balloon is going to have a much easier time of it.

      • You can do better than that, but broadly speaking the balloon is going to have a much easier time of it.

        There is a reason spy planes fly insanely fast at incredibly high, almost space like altitude instead of loitering...




        Bear with me, I’m a bit slow here, but there must be some reason.

        • To avoid being shot down? This device used a different defense "I'm just a civilian weather balloon, nothing to see here..."
          • Re: (Score:2, Insightful)

            by SoCalChris ( 573049 )

            And then it traversed the country before being shot down. After having multiple others traverse the country without any issues. So it sounds like this worked out really well for China.

            • The U2 worked quite well over Russia and China as well--until it didn't.
            • Re: (Score:2, Interesting)

              by Shaitan ( 22585 )

              Yes... for no apparent reason, unless you count the funds laundered through 'rent' payments.

              The claim of multiple others traversing the country seems to be completely fabricated. Everyone in the previous administration in a position to know confirms Trump's assertion there were no previous balloons detected; even those who don't get along with Trump anymore. So either there were no previous detected balloons or someone in the DoD/military is guilty of treason. I suspect there were no balloons.

              • The current details are that the military didn't detect and track those three under Trump. They found them via other means after the fact. They are known to cross Texas and Florida.

            • The brazen attitude towards territorial airspace made it hard to depend on common sense limitations of the payload, who knows what else was on board waiting to be spread across the US?

              "Oh it's not our fault the exploded sensor spread heavily radioactive debris, it was just a sealed scientific instrument honest." They couldn't believe they could get away with that right? But the balloon is already a crazy level of stupid to begin with, so best to just shoot it down over the ocean. Now begins the process of c

      • by Shaitan ( 22585 )

        I wouldn't be surprised if it had stingray like capabilities and could launch MITM attacks.

      • by AmiMoJo ( 196126 )

        The downside is that your balloon is easily detectable and trackable, can be shot down and investigated, and whatever intel transmits back to you can be monitored.

        China has a constellation of spy satellites, a mixture of various camera and signal intelligence models. Given China's leadership in those things (Huawei developed most of the key technology behind 5G, for example) it seems unlikely that they would need a balloon, and if they did they wouldn't want to risk whatever high tech signal gathering equip

    • Well there is a thing called the ionosphere, a lot of radio frequencies basically will not go through it. Also if you think of your wifi having a range of about 100 ft but if you have a directional antenna you can get some gain but there are tradeoffs. A lot of what you want to listen too is going to be a problem in space, due to the speed of satellites that adds to the problem due to Doppler shift which is depending on your speed relative to the source. Add to that cost. A balloon (I would assume) would be
      • Technically correct, but think about what you're actually saying...

        How would one balloon hope to gather anything of importance? It's all encrypted and you'd have to be damn lucky to be in just the right spot at the right time to get anything.

        • I am an engineer not a spy. I think you can make such a thing intercept a lot of signals. A lot of encryption is crap but that is only if you are wanting to get the content. You may want to get a good idea of what radio signals are sent to a plane that is going to shoot you down with a missile, there may be other signature type signals and frequencies being used that you are interested it.
    • by ceoyoyo ( 59147 )

      China can't afford to park a half dozen of these [wikipedia.org] in orbit? Yet.

    • Slow movement. Lower level to observe from. Easier to target and collect communications and images. Cheaper to build and much cheaper to get the asset into service. Larger payload capability. Less extremes of temp and radiation. Collecting equipment is cheaper and likely off the shelf with minor mods rather than bespoke mil or space qualified one off.
  • Was it really collecting intel or was it about poking the bear to see how it would react ? Also: how state of the art was the surveillance tech ? Floating over stuff that is out of date could give the USA a false sense of security.

    All speculation.

    • by bugs2squash ( 1132591 ) on Thursday February 09, 2023 @03:35PM (#63279829)
      It was a guy in a lawn chair with a cell phone, a police scanner and a pair of binoculars
      • Originally he also had a pellet gun, but unfortunately he dropped it early into the flight.

      • I prefer the notion that an expert team of meteorologists couldn’t predict the trade winds with a floating weather station at their disposal and they just somehow just kept not understanding as it meanders around the globe. They were too embarrassed to admit they were that bad at their jobs, and, well, things just got more out of hand. It’s just dumb enough to be real
    • Was it really collecting intel or was it about poking the bear to see how it would react ? Also: how state of the art was the surveillance tech ? Floating over stuff that is out of date could give the USA a false sense of security.

      All speculation.

      Were I China (yeah the whole country...) I wouldn't have wanted something packed with state of the art surveillance equipment going over the USA where they could potentially capture it and learn all sorts of stuff.

      Also, if it was really an advanced weather balloon, and if this was held up by the evidence gathered from its remains, theres NO WAY the USA would admit to that. It MUST be a spy balloon in order to help the propaganda narrative.

      • Were I China (yeah the whole country...) I wouldn't have wanted something packed with state of the art surveillance equipment going over the USA where they could potentially capture it and learn all sorts of stuff.

        I would've painted Rick Astley's face on the side and filled it entirely with glitter. Now that's how you troll the USA.

    • Was it really collecting intel or was it about poking the bear to see how it would react?

      More likely, poking the elephant [wikimedia.org] ...

  • At least they have WWI tech now.
    • At least they have WWI tech now.

      Actually, China is developing all kinds of cool tech. I read about their experiments with rail guns. Apparently they discovered that if they drastically increase the rate of fire this actually reduces wear but reduces the range. Sort of like a short range plasma blaster. You'd be fools to underestimate them. Oh wait.. USA...

  • Posts about paywalled articles should be tagged as such, then we could have a nice filter to stop wasting time on.
  • If I wanted to send up a balloon to capture RF, I'd certainly not need the 8kw or so of power available to do it. Pre-amps, SDRs, and hard drives draw a very small fraction of that much power.
    • a $12 sdr stick will receive a lot. And it is real silly for the guts not to be put on public display. My bet is it was received radar returns. Bear in mind a stealth place will have a reflection looking down vertically. But the same radar can also be used for rainfalls and snow events.
  • Apparently non-weather balloons are specifically exempted from ICAO rules regarding shooting down foreign aircraft.
    • by tlhIngan ( 30335 ) <slashdot@worf.ERDOSnet minus math_god> on Thursday February 09, 2023 @06:56PM (#63280463)

      Apparently non-weather balloons are specifically exempted from ICAO rules regarding shooting down foreign aircraft.

      Actually, there are a lot of laws. Basically, the airspace above a country belongs to the country. No aircraft - balloon, glider, airplane, whatever, can overfly another country's airspace without permission. So just like how the world revoked permission for Russian aircraft to fly over their airspace in 2022, a country can prohibit overflight of its airspace (like Russia did to the world - everyone has to route around Russian airspace too). Now traditionally you don't want to shoot down another aircraft not permitted in your airspace because well, people. But you can, as it can be a form of invasion.

      Balloons fall into the same thing as well - they're not allowed to fly into another country's airspace without permission, and that permission has to be obtained before lifting off. The only exception are weather balloons, which are defined as a balloon carrying a payload under 4kg whose instruments are only for collection meteorological data. (The wording is rather exact - it must be for meteorological use only - it can't do anything else). But anything else well, it's fair game and can be shot down.

      If you observe China's wording, you'll see they're being extremely careful with their words trying to play a little fast and loose (remember where I said it was only for meteorological use? China said it had the capability of collecting meteorological data). China knows they violated the law and they know the US is completely within its right to shoot it down. And the US is within its right to examine what it shot down, too, so China can't claim the US is spying on its classified technology.

      Of course, I think a good reason it was left up there was because the government knew about it, and was basically feeding it fake information - you have a direct line into Chinese intelligence, so it's a perfect opportunity to screw with them.

    • by jonadab ( 583620 )
      > Apparently non-weather balloons are specifically exempted

      That's presumably why the CCP tried to say that it was a weather balloon (not that anyone believed them); but this one was *way* over the weight limit for that in any case, so it's moot: even if it *had* been used mainly, or even exclusively, for meteorological purposes, it would still not be protected under the Chicago convention. Nor should it be: that agreement is primarily intended to cover airline flights, which is absolutely NOT what thi
  • by account_deleted ( 4530225 ) on Thursday February 09, 2023 @04:50PM (#63280085)
    Comment removed based on user account deletion
  • was capable of collecting communications signals and was part of a broader People's Liberation Army intelligence-gathering effort that spanned more than 40 countries

    and they know all that thanks to a couple of high resolution images. so they say with a straight face. these fucking muppets don't even pretend to be serious anymore ... :O)

  • If this was some kind of spy mission, this was definitely the best way to do it.

    A slow-moving, very visible balloon.

    No possible way a person on the ground could acquire whatever the balloon is attempting. Nope. /facepalm

    • If they were after high frequency radio signals being that high would give a much better horizon. Drifting slowly gives much more time over an area than a satellite pass.

      It's not as facepalmy as you think.

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