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| | |-+  KSFB has been Plugged!
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Author Topic: KSFB has been Plugged!  (Read 28186 times)
Biff
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« on: October 22, 2010, 06:34:47 PM »

The KSFB feed is now running off of one of these:



That's a Sheevaplug - a little $99 linux server.  It's the size of a wall wart and only pulls about 5 watts of electricity.  With only my feed running on it it's averaging about 18% CPU usage.

You can read more about it here.
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smeuse
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« Reply #1 on: October 22, 2010, 11:04:56 PM »

Very cool!

Two questions:

1. What linux distro are you using with it?

2. What USB (i assume) sound card are you using?

-Steve
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Biff
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« Reply #2 on: October 23, 2010, 12:06:04 AM »

I put debian on it, 2.6 kernel.

For audio I'm using one of these:




I tried one of the type pictured below also, but the sound quality was absolutely atrocious.



So yes, there really is a difference between a $3 cheap audio adapter, and a $1 cheap audio adapter.  Smiley
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smeuse
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« Reply #3 on: October 23, 2010, 08:38:34 AM »


I had to do a double-take on the price of the USB audio adapter.

$2.82!!!

That's less than a gallon of milk these days!

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MikeNYC
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« Reply #4 on: October 26, 2010, 09:05:30 PM »

I've been wondering about using a SheevaPlug for a LiveATC site! Seems like a great idea. Are there any reasonably priced small USB scanners out there? I've seen the Icom PCR series, and the WinRadio as well. They're all very expensive. I might be able to get a feed somewhere if there was a small (SheevaPlug) solution that could be entirely remotely controlled, to add/drop frequencies etc.

Can you share any more information?
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Feed Provider Of:
NYC Helicopter Class B/Ops
KEWR Tower (TCA/Helicopters)
NYC Helicopter CTAF
KLGA NY Approach (HAARP/Final/Dep)
KTEB Del/Gnd/Tower
NYC MilAir/MISC
Biff
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« Reply #5 on: October 26, 2010, 10:17:06 PM »

Sorry, I can't help you with info about any USB scanners.  My feed is running on a Sony Wavehawk hand-held that's plugged into that USB audio adapter.  I do have a Bearcat scanner that can be controlled via USB->serial adapter, but I've never tried it under linux.  That sounds like a good project though.

Gotta say I'm loving this plug.  Smiley


 
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Fra
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« Reply #6 on: November 07, 2010, 08:36:42 AM »

Now this is cool!

Can you tell me how you managed to install a full linux distro on it? How do you control it? Do you have any graphic output by remote client like VNC or teamviewer?

If you can, please show us some screenshots of the actual software. I was thinking of getting one of these but I thought you could only use them as cloud servers.

Imagine all the watts you will save...typical PC uses from 250 to 500 watts of power...Mine is a thin client and uses 90. Imagine this with only 5!
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Biff
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« Reply #7 on: November 08, 2010, 10:05:36 AM »

Yea, I'm loving it. 

It comes with debain already installed, but you can fairly easily install new distros.  Check out http://plugcomputer.org for tons of info and support.  In fact, in order to get USB audio to work you do need a different kernel than the one mine shipped with.  But it literally takes less than 60 seconds to install a new kernel (pre-built).

I don't have a graphic UI installed on it, but I don't see why you couldn't.  You have minimal RAM and storage space to work with, so that may limit you.  I simply SSH into it and manage it via command line.  Not very sexy screenshots I'm afraid.  Smiley

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Fra
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« Reply #8 on: November 08, 2010, 02:30:01 PM »

I see.

How did you install and configure the OddCast then? With terminal commands?
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Biff
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« Reply #9 on: November 08, 2010, 03:10:37 PM »

Yes, but we use darkice instead of oddcast on linux.

# apt-get install darkice

Then edit the config and fire it up.  Smiley   There's also a matter of creating the init script, but that's a piece of cake too since Dave's already done all the work on that.
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Biff
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« Reply #10 on: November 17, 2010, 10:31:39 PM »

Running like a champ. Smiley

Code:
# uptime
 22:28:56 up 26 days,  5:18,  1 user,  load average: 0.94, 0.97, 0.91

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bmmart0171
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« Reply #11 on: March 13, 2011, 10:15:44 AM »

Whats the word for getting orlando approach on 121.1 on live atc? 
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dave
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« Reply #12 on: March 15, 2011, 03:42:43 PM »

Whats the word for getting orlando approach on 121.1 on live atc? 

Right now we don't have a provider close enough to MCO - if someone in range of MCO sees this and might be willing to help, please contact me.

Dave
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Darrell
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« Reply #13 on: March 18, 2011, 07:43:11 AM »

Yea, I'm loving it. 

It comes with debain already installed, but you can fairly easily install new distros.  Check out http://plugcomputer.org for tons of info and support.  In fact, in order to get USB audio to work you do need a different kernel than the one mine shipped with.  But it literally takes less than 60 seconds to install a new kernel (pre-built).




What kernel did you download to rebuild it?
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Looks like I picked the wrong week to quit sniffing glue.
---Steve McCroskey ATC---

KTOL feed http://audio.liveatc.net:8012/ktol.m3u
Biff
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« Reply #14 on: March 20, 2011, 12:17:32 PM »

I put 2.6.35.7 on it, which was the latest at the time. 

The most important thing is finding a compatible USB audio adapter. 
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