<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div><div>This isn't one place, this is a pattern I see all over the city. I think this situation will become more and more common as wifi spreads all over the world. And these days, most of the world lives in cites, and most cities in the world are quite dense.</div><div><br></div><div>I'd love to see a visualization of the data in <a href="http://wigle.net">wigle.net</a> in regards to channel utilitization. Here you can see my neighborhood in Brooklyn, which is much less dense than Manhattan. Each of those red dots is a wifi AP. The streets without red dots have not been surveyed.</div><div><br></div><div><a href="http://wigle.net/gps/gps/Map/onlinemap2/?addresscode=&citycode=&statecode=&zipcode=11238&variance=0.010&ssid=&netid=&startTransID=20010000-00000&endTransID=20130000-00000&update=Update&maplat=41.8815&maplon=-87.637&mapzoom=13">http://wigle.net/gps/gps/Map/onlinemap2/?addresscode=&citycode=&statecode=&zipcode=11238&variance=0.010&ssid=&netid=&startTransID=20010000-00000&endTransID=20130000-00000&update=Update&maplat=41.8815&maplon=-87.637&mapzoom=13</a></div><div><br></div><div>You can see even in California suburbia, there is also a lot of overlap:</div><div><a href="http://wigle.net/gps/gps/Map/onlinemap2/?addresscode=&citycode=&statecode=&zipcode=94301&variance=0.010&ssid=&netid=&startTransID=20010000-00000&endTransID=20130000-00000&update=Update&maplat=40.68874125035209&maplon=-73.98678302764893&mapzoom=15">http://wigle.net/gps/gps/Map/onlinemap2/?addresscode=&citycode=&statecode=&zipcode=94301&variance=0.010&ssid=&netid=&startTransID=20010000-00000&endTransID=20130000-00000&update=Update&maplat=40.68874125035209&maplon=-73.98678302764893&mapzoom=15</a></div><div><br></div><div>.hc</div><br><div><div>On Jun 29, 2012, at 12:30 PM, Henning Rogge wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Okay, that really looks like a "between a rock and a hard place" situation.<br><br>Channel 7 is not good, but at your position it might really be the "less worst" one.<br><br>Still, I think its not a good idea in general for a default configuration.<br>
<br>Henning<br><br><div class="gmail_quote">On Fri, Jun 29, 2012 at 6:22 PM, Hans-Christoph Steiner <span dir="ltr"><<a href="mailto:hans@guardianproject.info" target="_blank">hans@guardianproject.info</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><div class="h5"><br><div><div>On Jun 29, 2012, at 11:51 AM, Markus Kittenberger wrote:</div>
<br><blockquote type="cite"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><br>
> Also i'd like to join Daniel in asking why channel 7?<br>
<br>
</div>Maybe I'm biased by being in NYC, but whenever I do a scan, there are lots of APs on 1, 6, and, 11</blockquote><div>so 7 is not free too, as in 2.4ghz range channels are overlapping!</div><div><br></div><div>Markus</div>
</div>
</blockquote></div><br></div></div><div>After looking at lots of graphs around the city that look like the ones attached, other channels besides 1,6,11 start to look quite appealing:</div><div><br></div><div><br></div><div>
<span><e3ded714f6bf981a86a325cf4010ef6a.jpeg></span><span><device-2012-06-29-122142.png></span></div><span class="HOEnZb"><font color="#888888"><div>
<br></div><div>.hc</div></font></span></div><br>--<br>
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