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Cheapest way to feed FR24 / Anyone using RTL-2832u-R820t usb dongle ?

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  • charan
    replied
    Originally posted by HighlyCool View Post
    ADS-B signals are between 70 and 125 watts, but that is not a high power for a microwave signal which is VERY line of sight. The antennas are also mounted on the bottom of the plane, so unless your antenna has an actual view of the runway to the bottom of the plane you probably are not going to receive them once they get below roof level.
    Thanks ill try in some other locations where it has view of runway

    Leave a comment:


  • HighlyCool
    replied
    Originally posted by charan View Post
    Any one getting aircrafts that are on ground? i am trying my level best changing antennas, placing even higher, changing coaxial cables,making some home made coils and attaching, still no luck at some point i got 50 feet was the final one thats it aircraft vanishes of my radar.. any suggestions. and my house is about 50 feet and there are houses around me around of 100 ft i guess but there are some gaps for the signal to come and im just 3nmi to my airport still no luck. but im getting planes over 100nmi..i even bought this rtlsdr for that sake which is now not fulfilling please give any suggestions ? and i bought two rtlsdr so no more buying i dont have money (i can buy up to 10$ :P) so suggest me a home made preamp or filter which i can make my own.[ATTACH=CONFIG]3536[/ATTACH] there is some disturbance as well i donno how to remove it...
    ADS-B signals are between 70 and 125 watts, but that is not a high power for a microwave signal which is VERY line of sight. The antennas are also mounted on the bottom of the plane, so unless your antenna has an actual view of the runway to the bottom of the plane you probably are not going to receive them once they get below roof level.
    Last edited by HighlyCool; 2014-03-13, 14:17.

    Leave a comment:


  • charan
    replied
    Any one getting aircrafts that are on ground? i am trying my level best changing antennas, placing even higher, changing coaxial cables,making some home made coils and attaching, still no luck at some point i got 50 feet was the final one thats it aircraft vanishes of my radar.. any suggestions. and my house is about 50 feet and there are houses around me around of 100 ft i guess but there are some gaps for the signal to come and im just 3nmi to my airport still no luck. but im getting planes over 100nmi..i even bought this rtlsdr for that sake which is now not fulfilling please give any suggestions ? and i bought two rtlsdr so no more buying i dont have money (i can buy up to 10$ :P) so suggest me a home made preamp or filter which i can make my own.rtl.png there is some disturbance as well i donno how to remove it...

    Leave a comment:


  • nliviu
    replied
    You can do the way I did:
    - install macports from here http://www.macports.org/install.php
    - install libusb, rtl-sdr from ports
    - download the zip from https://github.com/MalcolmRobb/dump1090
    - unzip it
    - run make in the dump1090 folder
    I compiled it like that on Mac OS X 10.5.5 and 10.7.5. I hope I didn't forget some step.

    There is another idea to do it here http://www.sigint-group.org/board90-...x-compilieren/
    The thread is in German language, but it is easy to read. I didn't test it, but it looks ok.

    There is also a compiled version for Mac (very old one) here http://www.radiohobbyist.org/blog/?p=1248 You still need rtl-sdr and libusb.

    Liviu

    Leave a comment:


  • eyeman
    replied
    Radek

    I've been following your thread on dump1090. I have a RTL dongle which works well with RTL1090 and Plane Plotter, but I would like to try dump1090. I can get it through github, but when I hit make, I get the following:

    todd-lefkowitzs-computer-1618:dump1090 eyeman27$ make
    gcc -O2 -g -Wall -W `pkg-config --cflags librtlsdr` -c dump1090.c
    Package librtlsdr was not found in the pkg-config search path.
    Perhaps you should add the directory containing `librtlsdr.pc'
    to the PKG_CONFIG_PATH environment variable
    etc......

    I use Mac OSX, and don't have much Linux experience. Can you help?

    Todd

    (my parents and Grandparents came from Poland...I have been 3 times)

    Leave a comment:


  • Jarod
    replied
    http://www.ebay.com/itm/MINI-FM-DAB-...item35c77a8176 - MINI FM+DAB+DVB-T+SDR Dongle STICK RTL2832U+R820T Antenna for LINUX - newly listed = $14,99 (They upped the price, new seller)

    Leave a comment:


  • one
    replied
    Hello,

    Here is what I did (assuming your are root)

    cd ~
    mkdir adsbox
    cd adsbox
    # Now you work into /root/adsbox directory
    # Get adsbox latest sources from this link and untar it
    wget http://diseqc.org.ua/projects/hard/a...0130224.tar.gz
    tar xvzf adsbox-20130224.tar.gz
    adsbox/
    adsbox/adsb.c
    adsbox/Makefile
    adsbox/readme.txt
    [...]
    # Get sqlite3 sources from this link
    wget http://www.sqlite.org/2013/sqlite-am...on-3071602.zip
    # Unzip sources and rename directory
    unzip sqlite-amalgamation-3071602.zip && mv sqlite-amalgamation-3071602 sqlite3
    # Go to adsbox directory and use the make command to compile the program
    cd adsbox
    make
    [...]
    # You should get this line at the end : sqlite3.o db.o main.o -lpthread -lm -lrt -ldl -o adsbox
    Not you can use adsbox binary (option available
    root@debian:~/adsbox/adsbox# ./adsbox -help
    adsbox ADS-B decoder version 20130224.
    adsbox [options]
    -s, --serial input serial device
    --baud serial device baudrate (valid rates are: 115200, 230400, 460800,
    500000, 576000, 921600, 1000000, 1152000, 1500000,
    2000000, 2500000, 3000000, 3500000, 4000000)
    --bits serial device bits (7 or 8)
    -d, --daemon be a daemon
    -l, --lat our latitude
    -g, --lon our longitude
    -r, --record [file] record ADS-B data to file
    -p, --play [file] play recordered file
    -x, --rate [n] play n times faster
    -z, --snooze [n] snooze for n seconds before play
    --seed seeding raw ascii data on tcp port (default 30004)
    --seed-port [port] seed raw ascii data on this tcp port
    --avr-server [IP] connect to avrascii data server
    --avr-server-port [port] connect to avrascii data server port (default 30040)
    -h, --help this help

    Leave a comment:


  • inquisitor
    replied
    Originally posted by jestemradek View Post
    Remeber - to compile it you need last version of sqlite and place it like that:
    eg.
    /home/user/sqlite3
    /home/user/adsbox
    Lacking deeper Linux skills I'm struggling to install sqlite3 into my home directory. Can anyone please provide clear instructions how to get the sqlite3 binaries into the correct location?
    I've installed sqlite3 using
    sudo apt-get install sqlite3
    but I cannot find the destination folder from where I could move the binaries to my home directory.
    Any help is highly appreciated. Thanks!

    EDIT: found the answer myself:

    Download the latest SQLite amalgation files from http://www.sqlite.org/download.html (first download item of that page). Unzip contents into /home/sqlite3, switch to adsbox folder and run make. That's it.
    Last edited by inquisitor; 2013-05-03, 17:59.

    Leave a comment:


  • LN-MOW
    replied
    Originally posted by Hebwx View Post
    With the normal receivers you should expect 250km + but I'm not sure what the range is like on these.
    I hooked mine up to my regular, roof-mounted antenna to compare with SBS-3 and couldn't really see much difference. I got hits over 200nm away also with the stick.

    Leave a comment:


  • Hebwx
    replied
    The more sky it can see & the higher it is then the better results you'll get.
    So for best results it needs to be outside, in a position where it has 360 degrees of clear open space around it, no buildings or structures at the same height for some distance.
    With the normal receivers you should expect 250km + but I'm not sure what the range is like on these.

    Leave a comment:


  • darethehair
    replied
    Originally posted by nzradar View Post
    If the antenna is in a steel safe under your bed then yes, 80km is exceptional.......................see what I'm saying?
    What view of the sky has your antenna?
    Originally in an upstairs room beside a window facing, in a higher part of the town and province. Now I am going to try in a basement beside a window, but with a good view to the west.

    Leave a comment:


  • nzradar
    replied
    Originally posted by darethehair View Post
    [first post]P.S. Is 80km a normal range for the tiny supplied antenna?
    If the antenna is in a steel safe under your bed then yes, 80km is exceptional.......................see what I'm saying?
    What view of the sky has your antenna?

    Leave a comment:


  • darethehair
    replied
    [first post]

    Got my eBay R820T yesterday after a 2.5 week wait (not bad). Finally managed to get and figure out the best software for my Linux environment re: FlightRadar24, and even managed to track a few planes that were within 80km or so. I need to figure out some way to cheaply/easily/safely add a better antenna

    On that note, since these DVB-T sticks are inexpensive enough to getting more than one, it would sure be nice to know of a reliable eBay supplier of the R820T versions that have the so-called 'safe' antenna diodes to prevent blowing the LNAs (or so I read). Does anyone know of such a source?

    P.S. Is 80km a normal range for the tiny supplied antenna?

    Leave a comment:


  • Kanok
    replied
    With the price of FR24 receiver was announced yesterday which i think it is way too high. This topic will be more popular.

    Regards,

    Sent from my iPad 2 Limited Ed. using Tapatalk HD

    Leave a comment:


  • Jarod
    replied
    Let me add some valid ebay links as well:

    $12,66
    http://www.ebay.com/itm/USB-2-0-DVB-...item337f93cc26
    http://www.ebay.com/itm/New-USB-2-0-...item337f34b0be

    $12.86
    http://www.ebay.com/itm/New-USB-2-0-...item337f151ebb

    Don't have the numbers fool you, they have thousands, they change price depending on how much are sold.
    $12.66 has been a fixed price for months now, as they still keep selling, they started out as low as $10.

    Sometimes there are multiple sellers as well, myflash168 and gbox_au are two good sellers..... however all rtlsdrs i ordered came from the same warehouse in Hong Kong.

    Leave a comment:

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