How are we supposed to read 5GHz WiFi signal strength bands?

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I ran a WiFi survey using "Wifi Analyzer" freeware on my Android phone in  
a college-dorm atmosphere earlier today (after installing Windows 10),  
and I think I completely understand the 2.4GHz wifi signal-strength  
chart; but I totally fail to gather any useful information out of the  
5GHz signal-strength chart (specifically what band to set the 5GHz wifi  
adapter to).

http://i.imgur.com/JS4BDiy.jpg

The 2.4GHz chart is at the left; while the 5GHz chart is to the right.
Can you help me interpret what I'm seeing in the 5GHz chart?

I can't make any sense of the 5GHz chart (for example, what band to use?).
Can you?


Re: How are we supposed to read 5GHz WiFi signal strength bands?
In alt.home.repair, on Sun, 23 Aug 2015 05:45:56 +0000 (UTC), ceg

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It's awfully pretty.  

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I think it means "LIfe is empty and the only true solace is in
technology."

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No.   But it's awfully purty.  Maybe a museum would want to display it  

Re: How are we supposed to read 5GHz WiFi signal strength bands?
In alt.home.repair, on Sun, 23 Aug 2015 05:45:56 +0000 (UTC), ceg

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A strange thing.  The image above displayed just fine at first and for
at least a couple minutes, and I went and did something else, but later
when I looked at the tab, it was all black.  When I reloaded, I got the
message.  
   "The image http://i.imgur.com/JS4BDiy.jpgcannot be dsplayed because
it contains errors".   I checked the spelling.  

You didn't change the image in the 15 minutes preceding the current
time, did you?  

When I clicked on the link above just now, got the same black screen
with one line error message at the top, as above.  

Re: How are we supposed to read 5GHz WiFi signal strength bands?
In alt.home.repair, on Sun, 23 Aug 2015 06:33:36 -0400, micky

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Tried again just now, 14 minutes later, and it worked just fine.   Maybe
because I had closed the two tabs with error messages?


Re: How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 06:48:42 -0400, micky wrote:

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Works for me.
http://i.imgur.com/JS4BDiy.jpg

Anyway, I can't make any sense out of the 5GHz graph, so, I was hoping
someone who knew what it means would chime in.


Re: How are we supposed to read 5GHz WiFi signal strength bands?
On 23/08/2015 06:45, ceg wrote:
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It got misdirected from a disco gobo.

Re: How are we supposed to read 5GHz WiFi signal strength bands?
On Sun, 23 Aug 2015 13:09:55 +0100, N_Cook wrote:

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BTW, why do so many people use HOME as the prefix to their
SSID's?


Re: How are we supposed to read 5GHz WiFi signal strength bands?
ceg wrote:
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Maybe because it is home network? Mine is homewireless and cascadehome.


Re: How are we supposed to read 5GHz WiFi signal strength bands?
On Tue, 25 Aug 2015 22:06:49 +0000 (UTC), ceg

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They don't.  The HOME-XXXX format, where XXXX might be the last 4
digits of the MAC address, is the default SSID for Comcast "gateway"
style wireless routers.  I'm not sure when this started, but my
guess(tm) is about 2 years ago.

Anything is better than linksys, dlink, default, hpsetup, and default.
<https://wigle.net/stats#mainstats
3.74% of about 210 million wireless networks use the default SSID.  I
guess this is proof that most computer users have no imagination.



--  
Jeff Liebermann     jeffl@cruzio.com
150 Felker St #D    http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann     AE6KS    831-336-2558

Re: How are we supposed to read 5GHz WiFi signal strength bands?
On 08/26/2015 09:08 AM, Jeff Liebermann wrote:

[snip]

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I used to see a lot of "Linksys" SSIDs without wireless security. Once I  
considered connecting and changing it to something like "I'm so  
insecure!" or "I need my WPA!",

--  
Mark Lloyd
http://notstupid.us/

"HUMANISM: an exaltation of freedom, but one limited by our need to
exercise it as an integral part of nature and society." [John Ralston
Saul]

Re: How are we supposed to read 5GHz WiFi signal strength bands?
On Wed, 26 Aug 2015 10:29:39 -0500, Mark Lloyd wrote:

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Because of butterfly tables, you want your ESSID to be unique, I think.

The details are beyond me (I think Jeff Liebermann turned me on to this  
concept), but the net is that you don't want your ESSID to be something  
that is in the hash tables of 30 million other ESSIDs.


Re: How are we supposed to read 5GHz WiFi signal strength bands?
On Wed, 26 Aug 2015 10:29:39 -0500, Mark Lloyd wrote:

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You have to realize what Jeff is trying to tell you, which is that any  
common name for the ESSID has *already* been hashed.  

In that case, WPA2/PSK is worthless.

Use a common name, and you immediately have no security no matter what  
you set the security to.


Re: How are we supposed to read 5GHz WiFi signal strength bands?

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WPA2/PSK is one thing that is needed. Another is a better ESSID.

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--  
112 days until the winter celebration (Friday December 25, 2015 for 1
day).

Mark Lloyd
http://notstupid.us/

"He's a born-again Christian. The trouble is, he suffered brain damage
during rebirth."

Re: How are we supposed to read 5GHz WiFi signal strength bands?
On Fri, 04 Sep 2015 11:59:08 -0500, Mark Lloyd wrote:

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You need both.
One without the other is worthless.


Re: How are we supposed to read 5GHz WiFi signal strength bands?

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Yes, both are better. I was never recommending only one, even though  
that would be far from worthless.

--  
110 days until the winter celebration (Friday December 25, 2015 for 1
day).

Mark Lloyd
http://notstupid.us/

"If I see a professing vegetarian eating meat, it is no hypocrisy for me
to point out his inconsistency even though I personally do not subscribe
to the principles of vegetarianism."

Re: How are we supposed to read 5GHz WiFi signal strength bands?
On Wed, 26 Aug 2015 07:08:58 -0700, Jeff Liebermann wrote:

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Ah. That makes a *lot* of sense (I hate when that happens!). :)

This is a "comcast neighborhood", where all the college kids live. We can  
assume most of them weren't born with a router next to the silver spoon  
in the cradle, so, they probably got their modem/router combo's from  
Comcast. And Comcast probably defaulted on the naming conventions.

That makes too much sense!
Thanks for 'splaining.


Re: How are we supposed to read 5GHz WiFi signal strength bands?
Jeff Liebermann wrote:
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Fancy SSID has no impact on security.


Re: How are we supposed to read 5GHz WiFi signal strength bands?
On Wed, 26 Aug 2015 17:31:20 -0600, Tony Hwang wrote:

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Butterfly hash tables?


Re: How are we supposed to read 5GHz WiFi signal strength bands?
wrote:

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Wrong.  The SSID is used as a "salt" to do WPA/WPA2 encryption.  The
rainbow tables are only useful if the SSID of the system that you're
attacking is the same as one of the SSID's in the rainbow table. Using
a common SSID listed on Wigle improves the probability of a successful
attack.  I use my address.

<http://www.renderlab.net/projects/WPA-tables/
<https://wigle.net/stats#ssidstats


--  
Jeff Liebermann     jeffl@cruzio.com
150 Felker St #D    http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann     AE6KS    831-336-2558

Re: How are we supposed to read 5GHz WiFi signal strength bands?
Jeff Liebermann wrote:
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Regardless, it is crackable if one intends to.
I don't even bother hiding my SSID. Nothing
important in my home network. My lawyer, bank,
accountant keeping important stuffs.

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