【Hacker News搬运】Wi-Fi只有在下雨的时候才能使用

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Title: The Wi-Fi only works when it's raining

Wi-Fi只有在下雨的时候才能使用

Text:

Url: https://predr.ag/blog/wifi-only-works-when-its-raining/

很抱歉，当前尝试抓取指定URL时遇到了问题，因为连接超时了。我无法直接访问网页内容。如果您能提供该网页的内容或者其它相关信息，我可以尝试帮助您进行分析总结。如果您需要了解如何使用`webscraper`工具，请告诉我，我可以提供进一步的指导。

Post by: bonyt

Comments:

jordigh: Let me see if I'm the first one to link to that classic story in the same series, "I cannot send email further than 500 miles"<a href="http://www.ibiblio.org/harris/500milemail.html" rel="nofollow">http://www.ibiblio.org/harris/500milemail.html</a>Or the Magic/More Magic switch<a href="http://www.catb.org/jargon/html/magic-story.html" rel="nofollow">http://www.catb.org/jargon/html/magic-story.html</a>It's fun when physical reality meets the abstract models that we have built in our heads of these machines.

jordigh: 让我看看我是否；我是第一个在同一系列中链接到那个经典故事的人；我不能发送超过500英里的电子邮件“ <a href=“http:/x2F；&#x2F；www.ibiblio.org/&#x2F！harris&#x2F：500milemail.html”rel=“nofollow”>http://x2F&#x2F；www.ibiblio.org/x2F；harris；500milemail.html</a>或者魔术；More Magic switch&#x2F；www.catb.org/x2F；行话&#x2F；html&#x2F；魔法故事.html</a>It；当物理现实与我们在这些机器的头脑中建立的抽象模型相遇时，这很有趣。

nunesvn: I don't know if this is fake, but it could be true. I had a similar situation working for a WISP around 2010.Every night, for about 10 minutes, the connections from our HQ to a relay tower became flaky. At the time we were using two Mikrotik 5GHz cards and some large antennas.You could sit in front your computer and wait, a few minutes after the sunset, for the monitoring alerts start arriving.
After a week trying everything, including changing hardware (to the same specs), I was very disappointed with the thing and got out to smoke around the sunset.Then some huge lamps we had around the building switched on, based on a light sensor. Immediately I received the SMS alerts on my phone. I ran into the building, turned off the external lights and bingo: 0% packet loss.It turns out that the building management had changed all of external lamps the week before, with new sodium-vapor bulbs. And for some reason, on the first 5 to 10 minutes with these lights on, it caused very high interference on the 5GHz band.Changed the lamps, problem solved.

nunesvn: 我不；我不知道这是不是假的，但也可能是真的。2010年左右，我在WISP工作时也遇到过类似的情况。每天晚上，在大约10分钟的时间里，从我们总部到中继塔的连接都变得脆弱。当时我们正在使用两个Mikrotik 5GHz板卡和一些大型天线 日落后几分钟，你可以坐在电脑前等待监控警报开始到来。经过一周的尝试，包括更换硬件（达到相同规格），我对这件事非常失望，在日落时分出去抽烟 然后，我们在大楼周围的一些巨大的灯打开了，基于光传感器。我立即收到手机上的短信提醒。我跑进大楼，关掉了外面的灯，然后宾果游戏：0%的数据包丢失 事实证明，大楼管理层在前一周更换了所有的外部灯具，换上了新的钠蒸汽灯泡。出于某种原因，在这些灯亮起的前5到10分钟，它对5GHz频带造成了非常高的干扰 换了灯，问题解决了。

asimpleusecase: We had an office in a very old building downtown with no access to fibre. The best internet we could get at the time was a 3G router in the window. Every afternoon at the same time our connection would drop down below 1 Meg and become unusable. Eventually we realised that down the street there was a large school and every afternoon when classes were over, hundreds of young people would turn in their phones and saturate our cell.

asimpleusecase: 我们在市中心一栋很旧的大楼里有一间办公室，没有光纤。当时我们能得到的最好的互联网是橱窗里的3G路由器。每天下午的同一时间，我们的连接会降至1兆以下，无法使用。最终，我们意识到街对面有一所大学校，每天下午下课时，数百名年轻人会打开手机，让我们的手机充满电。

drb999: Reminds me of an extremely similar case with a long distance microwave link at a mobile telecom provider in Australia that I worked for. They relied quite heavily on microwave link chains and this particular one was in northern Queensland where fixed lines were hard to find and no local engineers were locally present/aware of the changing environment.Every week day + Saturday, from 7-3 the link would keep cutting out intermittently. Then work fine and the rest of the day and on Sunday… a crane, building a new residential building would operate during those hours right in the middle of the microwave path. Many weeks of theories and time wasted until someone had a chance to visit.

drb999: 这让我想起了我工作过的澳大利亚一家移动电信提供商的一个极其相似的案例，即长距离微波链路。他们非常依赖微波链路，而这一特定链路位于昆士兰北部，那里很难找到固定线路，而且当地没有工程师；意识到环境的变化 每周的一天+周六，从7-3开始，链接会间歇性中断。然后好好工作，剩下的时间和周日…起重机，建造一栋新的住宅楼，将在这段时间内运行在微波路径的中间。浪费了好几个星期的理论和时间，直到有人有机会参观。：）

neilv: The title might've been a Fleetwood (the other kind of) Mac reference.<pre><code> o/~ Wi-Fi's only working when it's rainin'
Players only stutter when they're buff'rin'
Websites, they will page load oh so slooooww
When the rain falls down, you can download</code></pre>

neilv: 标题可能是；我是弗利特伍德（另一种）Mac的参考 <pre><code>o&#x2F；~Wi-Fi；只有当它；s rainin-7；玩家只有在他们；重新打磨；rin；网站，他们会加载页面哦，太慢了下雨时，您可以下载</code></pre>