Announcement

Collapse
No announcement yet.

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

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • sharonna
    replied
    Im also using the R820T dongle with ADSB# and ADSBScope since a few days.
    Im using a homebrew Antenna posted by Emmanuel here: http://www.kinetic-avionics.co.uk/fo...=7489&start=15
    Its construction is based on vk4tec schematics and G-7RGQ and TrueTrack notes.

    My Version of it is encased in a 40mm PVC Pipe and uses an N Connector, mounted on my Balcony in the 1st floor.
    Connected via 5m RG-213 Coax Cable with N Connectors.

    Im really happy with the results, since im surrounded by mountains, and the antenna positions is not optimal (Antenna is surrounded by 5 Story Buildings).

    coverage.jpg

    Regards
    Martin

    Leave a comment:


  • imokruok
    replied
    Untitled-1.jpg

    I'm using the R820T dongle with ADSB#, and I couldn't be happier with the results. My location (T-LAX2) is an apartment 3 stories up under the "Santa Monica" text in the attached map, and the antenna is a 20 inch whip with mag mount that is meant for 144/440 ham radio. It's indoors on top of my desk against a wall.

    Yet it tracked the HAL (Honolulu Air) flight for an impressive amount of time...

    Leave a comment:


  • jestemradek
    replied
    Originally posted by vortex View Post
    Interesting, thank you. Where did you find --net-ro-port?

    just try ./dump1090 --help


    Recently someone told me that the MLAT requires two things:
    a) frames ADS-B
    b) very accurate-time of receiving each frame (time from GPS)

    Accuracy reaches 0.000001 sec...

    The USB port has a slight delay, that rtl's devices are useless to the service MLAT.

    MLAT need ADS-B receiver hardware-integrated with GPS.
    Only this can guarantee a very precise time of received frames.

    Can anyone confirm this?



    Regards
    Radek

    Leave a comment:


  • vortex
    replied
    Interesting, thank you. Where did you find --net-ro-port?
    It still didnt work though. Look at the message in the left bottom. All the blue aircraft are "mine".
    I use the settings for "AVR receiver"
    Attached Files
    Last edited by vortex; 2013-01-25, 20:46.

    Leave a comment:


  • jestemradek
    replied
    Try dump1090 like that:

    ./dump1090 --net --net-ro-port 30002

    Regards
    Radek

    Leave a comment:


  • vortex
    replied
    I have dump1090 and rtl_asdb working on raspberry. Both do an excellent job in forwarding data to fr24 and adsbscope.
    The issue I have is with planeplotter. I can feed data to it directly or via adsbscobe but on port 30002 I can't get it to receive raw data for mlat.
    Is it because the raw data is not coming from the raspberry?

    Leave a comment:


  • jestemradek
    replied
    Originally posted by digitizing View Post
    I'm using R820T.
    When using rtl_adsb it produce much more avr format.
    But also with more error packet.
    Did you already tested dump1090 with option --enable-agc?


    Regards
    Radek

    Leave a comment:


  • digitizing
    replied
    Originally posted by jestemradek View Post
    which device do you have? R820T or E4000?



    In my opinion dump1090 with option --enable-agc grabs 20% more frames.

    Regards
    Radek
    I'm using R820T.
    When using rtl_adsb it produce much more avr format.
    But also with more error packet.

    Leave a comment:


  • jestemradek
    replied
    Originally posted by jestemradek View Post
    In my opinion dump1090 with option --enable-agc grabs 20% more frames.

    Regards
    Radek
    which device do you have? R820T or E4000?



    In my opinion dump1090 with option --enable-agc grabs 20% more frames.

    Regards
    Radek
    Last edited by jestemradek; 2013-01-23, 10:11.

    Leave a comment:


  • digitizing
    replied
    I just using this command
    ./dump1090 --net --net-sbs-port 30003 --interactiv
    compared with rtl_adsb, for me rtl_adsb is much better than dump1090.

    Leave a comment:


  • digitizing
    replied
    Originally posted by jestemradek View Post
    Try lastest version from git of dump1090

    git clone https://github.com/antirez/dump1090.git
    cd dump1090
    make

    and use option like that:
    ./dump1090 --net --net-sbs-port 30003 --interactive --enable-agc

    and FR24 like that:
    ./fr24feed_arm-le_225 --fr24key=your_share_key --bs-ip=127.0.0.1 --bs-port=30003

    Regards
    Radek
    wow it's a good news,
    i'll try it soon, while building 5V regulator using LM2576-5
    for powering my raspberry pi using POE.

    Leave a comment:


  • deconz
    replied
    Originally posted by web View Post
    Yes, dump1090 is far better. I have currently very bad antenna and gr_air_modes catches the signal only when planes are within 20 kilometers. Dump1090 can find a plane as far as 150 kilometers away. It is more CPU-friendly, too.
    WOW, that's impressive. However, from my location I saw traffic at 190nm with the mini antenna supplied with the dongle!!! I will try dump1090 and report back.

    Leave a comment:


  • web
    replied
    Originally posted by jestemradek View Post
    How about the results? Better than gr_air_modes?

    Regards
    Radek
    Yes, dump1090 is far better. I have currently very bad antenna and gr_air_modes catches the signal only when planes are within 20 kilometers. Dump1090 can find a plane as far as 150 kilometers away. It is more CPU-friendly, too.

    Leave a comment:


  • jestemradek
    replied
    Originally posted by web View Post
    Thank you, --net-sbs-port did the trick (I had an old version and the function was not implemented yet!)
    How about the results? Better than gr_air_modes?

    Regards
    Radek

    Leave a comment:


  • web
    replied
    Thank you, --net-sbs-port did the trick (I had an old version and the function was not implemented yet!)

    Leave a comment:

Working...
X