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Thread: best antenna

  1. #2781
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    i think is 1.15 but not dev, because i see new map and is installed from

    sudo apt-get update && sudo apt-get install dump1090-mutability -y

    from my own tutorial ( now i am copying many of the info you have)

    pi@raspberrypi:~ $ dump1090-mutability
    Tue Aug 20 22:19:11 2019 BST EB_SOURCE EB_VERSION starting up.


  2. #2782
    Captain abcd567's Avatar
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    The EB_VERSION is same as mutability ver 1.15~dev.
    It is a built package maintained in Debian Buster repository by Debian hamradio maintener. It is a snapshot of source code of dump1090-mutability ver 1.15 ~dev.

    Dump1090-mutability ver 1.15~dev package now available in Repository!


    https://bugs.debian.org/cgi-bin/pkgr...090-mutability


    To change gain:

    sudo dpkg-reconfigure dump1090-mutability

    sudo nano /etc/default/dump1090-mutability
    Last edited by abcd567; 2019-08-20 at 22:11.

  3. #2783
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    thanks, as i remember in all my configs are:

    # RTLSDR gain in dB.
    # If set to "max" (the default) the maximum supported gain is used.
    # If set to "agc", the tuner AGC is used to set the gain.
    GAIN="max"

    so, is this good?

  4. #2784
    Captain abcd567's Avatar
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    Try different gain value, like 49 45 40, 35 etc, and at each value observe message rate / number of planes to find best setting.

    Alternatuvely wiedehopf has developed some script to do this tweaking of gain.

  5. #2785
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    great, i will test.

    btw what means the F and the T in front of station?

    mines are T-

    but why?

  6. #2786
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    well, a small update from my antennas.

    i raised the cantenna i think are 5meters above floor, and it works good

    antenna01.png

    config is raspberry pi 3 b + flightaware yellow +flightaware filter and cantenna.

    my other antenna is the 2 pole like abcd567 did some time ago, here is the pic.

    antenna03.jpg

    and this is the data i am receiving:
    nld2.png

    a few planes but some are far away, setup is

    raspberry pi 3 b + dvb-t dongle + and mcx extension to 2 pole antenna as shown in picture ( no filter ) next week filter will arrive and i have to test that config.

    funny thing, on this config i saw a plane with afghanistan flag, but culdnt take a screen shot to find more about it. since radar is in Mexico, it was weird.

  7. #2787
    Captain abcd567's Avatar
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    As with dipole you are using dvbt (no integral amplifier), better add a Satellite amplifier close to the antenna. You will need a power inserter and a 15V DC power supply also.

  8. #2788
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    i will test dipole antena with blue flighaware dongle, the one that has the filter, and the in line amp.

    if you see one at ebay, just send me the link =)

    i really appreciate all the info you post, this is why i did it, because you explain it so good, and the images.

    thanks!

  9. #2789
    Captain abcd567's Avatar
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    If you use Flightaware blue dongle, you will not need a satellite amplifier (unless your coax cable is too long).

  10. #2790
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    great, you teach us to test, and i will test anything! =)

    do you think this will help?

    https://www.ebay.com/itm/AT-T-Former...kAAOSwT8FdViVS

    i buy one but i didnt see it was 5Mhz - 1000Mhz, so for Planes doesnt work, i will use it on my AIS Raspberry to see if that works ( 162Mhz )

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