Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 30-04-2013, 19:40   #91
Registered User

Join Date: Dec 2009
Posts: 10
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

For windows users - take a look at this tutorial
RTL-SDR Tutorial: Cheap AIS Ship Tracking - rtl-sdr.com

I tried similar configuration with no success, but I'll give it another try.
Regards
Stow
__________________

__________________
stow is offline   Reply With Quote
Old 01-05-2013, 12:14   #92
Registered User
 
larsed's Avatar

Join Date: Feb 2013
Location: Stockholm, Sweden
Boat: 1911, 6mR, 31 ft
Posts: 76
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

rgleason

Thank you for your kind suggestion!
-I'll start translating the description.
As you I doubt that it can be further compressed, I don't know your application, myself used Acrobat X Pro and compressed it as hard as I could to still be able to read the pictures. Still it was 1,8 MB.

Lars
__________________

__________________
larsed is offline   Reply With Quote
Old 03-05-2013, 14:23   #93
Registered User
 
larsed's Avatar

Join Date: Feb 2013
Location: Stockholm, Sweden
Boat: 1911, 6mR, 31 ft
Posts: 76
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

Well!

Since a few forum-members asked for it,
Here is finally the promised description of getting AIS to OpenCPN in OpenSuSE12.3 using a DVB-T-stick and gnuradio.

A direct-download link: http://lee-mactux.dyndns.org/public_...2.3.en.v.1.pdf

I decided to put it on my own server, though it's normally only up intermittently.
I decided to make an exception for once and will keep it up for a week.
Should there prove to be any furher interest I'll try to find a way to have it up more permanently.

That means Note! It will be only downloadable from now 2013-05-03 on until 2013-05-10 22:00 GMT +1! Note!


I hope it will be useful for anyone!

Regards

Lars

Since this was written I've changed domain to www.lee-mactux.org, the download-directory though is the same.
Today the description covers SuSE12.2-12.3. In time it's possible it will come updates relating to 13.1-->.
If anyone should want to dl it, I therefore refer to the directory so you can choose file version:
http://www.lee-mactux.org/public_htm...dio/downloads/
Server isn't up 7/24, but normally daily 17-22 CET (UTC+1) except during summer.

Edited by larsed 2014-02-04
__________________
larsed is offline   Reply With Quote
Old 03-05-2013, 14:26   #94
Registered User
 
larsed's Avatar

Join Date: Feb 2013
Location: Stockholm, Sweden
Boat: 1911, 6mR, 31 ft
Posts: 76
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

PS. To rgleason
Thank you for your kind offer, but I wouldn't like to bother you with my manual!
I decided to keep my own server up for a week for once. I think the ones interested and has followed this thread (like me ) will have time enough to take it down.
-One reflection though. It's a pity that there are so few coherent descriptions of howto do this, get AIS using GnuRadio, though there seems to be quite a few who have managed! The installation was really not hard to do, the problem was that the documentation is so fragmented, scattered "all over" internet and often contradictory. After navigating through that djungle for a couple of weeks, there really was no big deal.
Best regards!
Lars
__________________
larsed is offline   Reply With Quote
Old 03-05-2013, 14:40   #95
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 9,339
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

Dear Lars,
Thank you! Very thorough. I have read it once quickly and will be reading your writeup more carefully later. I have saved a copy, and really appreciate your effort.
It is real experience written up that will help the most. You have done that.
Rick
__________________
rgleason is online now   Reply With Quote
Old 04-05-2013, 11:41   #96
Registered User
 
larsed's Avatar

Join Date: Feb 2013
Location: Stockholm, Sweden
Boat: 1911, 6mR, 31 ft
Posts: 76
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

Thank you Rick!
Basically I write guidelines like these for me and my friend. He does as well.
You know in this Linux-world, when two years later you want to do something you know you've done before, but cannot figure out how on earth you did it?!
Regards
Lars
__________________
larsed is offline   Reply With Quote
Old 06-05-2013, 04:49   #97
Registered User

Join Date: Jan 2010
Location: Philippines
Boat: Robert 35 Centre Cockpit
Posts: 65
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

Quote:
Originally Posted by larsed View Post
Thank you Rick!
Basically I write guidelines like these for me and my friend. He does as well.
You know in this Linux-world, when two years later you want to do something you know you've done before, but cannot figure out how on earth you did it?!
Regards
Lars
Lars well done, I am a disafected ubuntu user moving most of my marine
leasure computing to android, i have bought a dongle but not been able to bring all the loose information on the internet into a cohesive solution.

Your instructions are excellent and i feel will go a long way to bringing a lot more eyes into this exciting ais project,

Thanks for your effort.

George
__________________
yachtmanforfun is offline   Reply With Quote
Old 06-05-2013, 14:36   #98
Registered User
 
larsed's Avatar

Join Date: Feb 2013
Location: Stockholm, Sweden
Boat: 1911, 6mR, 31 ft
Posts: 76
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

George!

Posts like yours make the work worthwhile!

Thank you!

Lars
__________________
larsed is offline   Reply With Quote
Old 08-05-2013, 15:11   #99
Registered User
 
larsed's Avatar

Join Date: Feb 2013
Location: Stockholm, Sweden
Boat: 1911, 6mR, 31 ft
Posts: 76
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

Sorry I could'nt edit edit this to my "ad" about the SuSE-guide, but

Possibly I have to take my server down for some hours 20130513 due to thunder storms.
That is daytime in my timezone GMT +2.

Lars
__________________
larsed is offline   Reply With Quote
Old 08-05-2013, 15:45   #100
Registered User
 
larsed's Avatar

Join Date: Feb 2013
Location: Stockholm, Sweden
Boat: 1911, 6mR, 31 ft
Posts: 76
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

I just wanted to add a few lines about a guide for Ubuntu I've mentioned in a note to Rick...

For Debian/Ubuntu/LinuxMint users: I really have to recommend the excellent guide on installing gr-ais on
DE8MSH *** German Shortwave Listener Station: Howto build a RTL-SDR environment on Ubuntu 10.04LTS !

I tried it out today in Debian 6.0 Squeeze and it went smooth!
For building gnuradio the author refers to a script on http://www.sbrac.org/files/build-gnuradio.
-That script also works for:
Fedora release 12 - 18
Redhat release 6
Linux Mint 11 12 13 14
Ubuntu release 9.04 9.10 10.04 11 12.04 12.10 13
Debian 6.0 wheezy sid
OpenSuSE 12.1
The script automatized a gnuradio install in a similar way we conducted the in SuSE12.3.
Keep in mind that there are a few more software needed well described in "Howto build a RTL-SDR environment on Ubuntu 10.04LTS".

It is important -as we found in SuSE12.3- to adjust your PATH!
In Debian (probably also Ubuntu/Mint) just add the line
export PYTHONPATH=/usr/local/lib/python2.6/dist-packages
with your favourite text editor to your ~/.bashrc

I only found some very minor errors in the manual:
You start gnuradio by
$ gnuradio-companion (not $ gnuradio_companion)
You start gr-air-modes by
$ modes_rx [options] (not $ gr-air-modes)

And after installing gr-ais and gr-air-modes respectively, you have to execute
$ sudo ldconfig (or else it will not find its libraries).

But I must stress, the author has created an excellent guide, and -compared to us- in very few and explaining words!

Regards

Lars
__________________
larsed is offline   Reply With Quote
Old 08-05-2013, 15:59   #101
Registered User
 
larsed's Avatar

Join Date: Feb 2013
Location: Stockholm, Sweden
Boat: 1911, 6mR, 31 ft
Posts: 76
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

Possible server down for some hours 20130509 not 0513
__________________
larsed is offline   Reply With Quote
Old 13-05-2013, 15:28   #102
Registered User

Join Date: Jun 2010
Location: St. Petersburg, Florida
Boat: Gemini 3200
Posts: 702
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

Quote:
Originally Posted by stow View Post
For windows users - take a look at this tutorial
RTL-SDR Tutorial: Cheap AIS Ship Tracking - rtl-sdr.com

I tried similar configuration with no success, but I'll give it another try.
Regards
Stow
Has anyone had any luck with this? I got a Terratec TStick+, installed SDR#, VB-Audio, and AISMON. I can listen to broadcast FM using SDR#. I can pick up the marine VHF FM weather channels and a time or two I picked up some traffic on other VHF channels. I can see the horizontal lines that represent AIS data on the SDR# waterfall.

With AISMON and OpenCPN connected via UDP 127.0.0.1:10110 I can replay the LA_LB_Snippet.wav file and see AIS targets at Long Beach.

But I haven't had any luck getting AIS targets to appear locally. Perhaps the signals are too weak, perhaps I'm missing a step. I'm trying to pipe the audio from SDR# to AISMON by using VB-Audio. It seems to work. If I fool around with the AF gain in SDR# the level in AISMON responds, so I think the pipe is working. Any ideas?

Fabbian
__________________
fgd3 is offline   Reply With Quote
Old 13-05-2013, 19:45   #103
Registered User
 
boat_alexandra's Avatar

Join Date: Aug 2009
Location: Masachusetts
Boat: bristol 27
Posts: 2,803
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

Quote:
Originally Posted by fgd3 View Post
Has anyone had any luck with this? I got a Terratec TStick+, installed SDR#, VB-Audio, and AISMON. I can listen to broadcast FM using SDR#. I can pick up the marine VHF FM weather channels and a time or two I picked up some traffic on other VHF channels. I can see the horizontal lines that represent AIS data on the SDR# waterfall.

With AISMON and OpenCPN connected via UDP 127.0.0.1:10110 I can replay the LA_LB_Snippet.wav file and see AIS targets at Long Beach.

But I haven't had any luck getting AIS targets to appear locally. Perhaps the signals are too weak, perhaps I'm missing a step. I'm trying to pipe the audio from SDR# to AISMON by using VB-Audio. It seems to work. If I fool around with the AF gain in SDR# the level in AISMON responds, so I think the pipe is working. Any ideas?

Fabbian
As far as I know, everyone is using gr-ais. Samplerate is 256k or higher. If anyone has a working setup using gnuais or aismon it would be great to hear, since gr-ais uses a lot of cpu.
__________________
boat_alexandra is offline   Reply With Quote
Old 14-05-2013, 00:06   #104
Registered User

Join Date: Jun 2010
Location: St. Petersburg, Florida
Boat: Gemini 3200
Posts: 702
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

Quote:
Originally Posted by boat_alexandra View Post
As far as I know, everyone is using gr-ais. Samplerate is 256k or higher. If anyone has a working setup using gnuais or aismon it would be great to hear, since gr-ais uses a lot of cpu.
I forgot to mention I'm running Windows Vista, in case that makes a difference in what's available.

Fabbian
__________________
fgd3 is offline   Reply With Quote
Old 15-05-2013, 04:47   #105
Registered User
 
larsed's Avatar

Join Date: Feb 2013
Location: Stockholm, Sweden
Boat: 1911, 6mR, 31 ft
Posts: 76
Re: Fast cheap AIS using $20 rtl-sdr DVB-T SDR Dongles !

Quote:
Originally Posted by boat_alexandra View Post
As far as I know, everyone is using gr-ais. Samplerate is 256k or higher. If anyone has a working setup using gnuais or aismon it would be great to hear, since gr-ais uses a lot of cpu.
...and so does SDR# and gr-air-modes.
I can only agree with boat_alexandra here! -I finally preferred to set up one machine as network server for AIS and ADS-B. This solution makes the costs similar to buying an AIS-receiver, and far more energy consuming.
__________________

__________________
larsed is offline   Reply With Quote
Reply

Tags
ais, cheap

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 13:34.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.