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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

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    Hector Martin‏ @marcan42 4 Sep 2018
    • Report Tweet
    • Report NetzDG Violation

    If you've ever wondered how Tokyo gets good cell reception, the answer is lots of base stations. everywhere. This one is on top of my building. Making an educated guess from the labeling, it covers at most an area of about 300m x 300m, probably less.pic.twitter.com/WLdRugfHvS

    2:06 AM - 4 Sep 2018
    • 130 Retweets
    • 425 Likes
    • uɐpʇou@ ✸ Conrad Kreyling Digital Neal Kunal 👻 InitKernel Mohamed Alexander Riccio Jean-Marc ❌Влад❌ Nox
    17 replies 130 retweets 425 likes
      1. New conversation
      2. R. Ou‏ @rqou_ 4 Sep 2018
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        Replying to @marcan42

        How vulnerable are these to tampering (disregarding what will happen to you after getting v&, just from a technical perspective)?

        1 reply 1 retweet 9 likes
      3. Hector Martin‏ @marcan42 4 Sep 2018
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        Replying to @rqou_

        Good question. Physically, there is zero security - no locks whatsoever (that are actually locked) between outdoors and those boxes. I'm not sure if the boxes themselves are locked, but I can trivially access the fiber uplink line (and hypothetically passive tap it, NSA style).

        1 reply 1 retweet 15 likes
      4. Show replies
      1. Tomas‏ @TommNZ 4 Sep 2018
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        Replying to @marcan42

        That looks tidy

        0 replies 0 retweets 1 like
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      1. Trent Lloyd  🦆‏ @lathiat 4 Sep 2018
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        Replying to @marcan42

        Apparently this will be more and more the norm with "5G" even in less dense cities.

        0 replies 0 retweets 2 likes
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      1. New conversation
      2. Cengiz Can‏ @cengiz_io 4 Sep 2018
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        Replying to @marcan42

        What about impact on health?

        2 replies 0 retweets 2 likes
      3. Hector Martin‏ @marcan42 4 Sep 2018
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        Replying to @cengiz_io

        None. It's non-ionizing radiation. As long as you aren't standing right next to the antennas, the dielectric heating effect is negligible too. And the more, lower-powered base stations there are, the less pronounced the peak power at any given one is.

        2 replies 3 retweets 45 likes
      4. Show replies
      1. Yuki‏ @yuki_is_bored 4 Sep 2018
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        Replying to @marcan42

        So .. not just the vending machines eh?

        0 replies 0 retweets 0 likes
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      1. New conversation
      2. Wolfgang Grojcig‏ @Grojcig 4 Sep 2018
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        Replying to @marcan42

        ehh... what about rain, wind, snow and all that. Do they leave that stuff in the open just like that?

        1 reply 0 retweets 1 like
      3. Hector Martin‏ @marcan42 4 Sep 2018
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        Replying to @Grojcig

        It's all weatherproofed.

        0 replies 0 retweets 3 likes
      4. End of conversation
      1. Boris Shilov‏ @muscovitebob 4 Sep 2018
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        Replying to @marcan42

        That’s a lot of copper and expensive networking gear one can sell for booze money!

        0 replies 0 retweets 0 likes
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