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  • magnum
    replied
    But you might not have a professional analyzer to really measure your cropping efforts

    I didn't go that deep. I just opened the cap at the top and looked inside. For me it works, independent if it's a single wire or something like a "miracle" inside

    I have it mounted now on it's final position as i am not able to bring it to the outside.
    In combination with the blue FA stick (pro plus) i am close to the max range, also number of messages is where it can be expected. Why should i try to improve more which is not there.

    Leave a comment:


  • AlejandroM
    replied
    interesting, if is a cable cropped, then i have done the same.

    i ordered a few of stuff to test i will post my info monday.

    Leave a comment:


  • magnum
    replied
    Nope, it's a single wire inside, optimized manually for that particular frequency

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  • AlejandroM
    replied
    Wow all planes are near you, awesome.

    What is inside antenna? It looks like this one from ebay

    https://rover.ebay.com/rover/0/0/0?m...2F143259814305
    Last edited by AlejandroM; 2019-08-23, 04:06.

    Leave a comment:


  • magnum
    replied
    Sure, here we go. The screenshot of the map was taken yesterday at approx 3:30pm my time with plenty of traffic.
    The chart is showing the last 24 hours.

    I'm already at my geographical maximum based on heywhatsthat.com, so there seem to be not much room for improvement.
    Forget about the way i mounted the antenna, this was for testing only, i'm currently checking a better and more reliable socket

    The message rate of around 1200/sec is also the maximum which can be expected from that type of stick. For more you will need a different equipment (e.g. Airspy)
    I did not adjust the antenna, this was made by the seller (eBay) with additional equipment for measurement.

    You see the little aircraft at Munich in the lower right corner? It's 330 km away.

    Skyview-new-antenna.jpg
    last24-hours.jpg
    new-antenna.jpg
    Last edited by magnum; 2019-08-23, 03:23.

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  • AlejandroM
    replied
    wow, can you send us a picture of the dump1090 map, and what kind of antenna did you do?

    and how do you adjusted it?

    thanks

    Leave a comment:


  • magnum
    replied
    I just bought an antenna after some DIY attempts.

    It's not an original Antenna, but built by an enthusiast and adjusted electronically to exactly the required frequency.
    Slightly better than my DIY versions and in a waterproof outdoor tube.

    Range went up 10-20 NM and aircraft getting closer to the airport are seen "longer" before they disappear due to their altitude.

    peak numbers today:
    aircraft: 150
    Messages: 1250/sec
    gain: 49.6

    I will try a little lower gain to verify if it improves.

    So far i am satisfied especially with the antenna only indoor.
    Last edited by magnum; 2019-08-23, 03:22.

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  • AlejandroM
    replied
    today is a good day =)

    Aircraft (total): 57
    (with positions): 47
    Messages: 191.4/sec

    gain is on 45

    Leave a comment:


  • AlejandroM
    replied
    yes, i have already purchased that one, maybe it will arrive on weekend.

    thank you abcd567

    Leave a comment:


  • abcd567
    replied
    Flightaware ProStick Plus at Amazon . com

    https://www.amazon.com/dp/B01M7REJJW/

    Leave a comment:


  • AlejandroM
    replied
    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 )

    Leave a comment:


  • abcd567
    replied
    If you use Flightaware blue dongle, you will not need a satellite amplifier (unless your coax cable is too long).

    Leave a comment:


  • AlejandroM
    replied
    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!

    Leave a comment:


  • abcd567
    replied
    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.

    Leave a comment:


  • AlejandroM
    replied
    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.

    Leave a comment:

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