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Thread: Need advice in buying another outside antenna

  1. #1
    Flight attendant
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    Jun 2019
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    Need advice in buying another outside antenna

    Good evening,

    I am new to this forum. I recently purchased a raspberry and a Jetvision ADS-B USB Dongle (R820T2) + Small Indoor Antenna. This dongle has a very small "connection opening" to connect the indoor antenna to the dongle.
    I do not have a very good range and of course I want to increase the range.

    If I want to but another (outside) antenna and cable how can I connect the "new" antenna to this double. For what I read and saw online the able connectors are totally different,( bigger) than the small connector I use.

    Is it possible to buy an antenna and cable and connect this to my dongle or do I have to but another dongle?
    Could some one please help me out. Any advice for an antenna is highly appreciated I am absolutely non technical, so building one myself is no option.


    Thanks a lot

  2. #2
    Captain
    Join Date
    Apr 2018
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    851
    You can get adapters to SMA;
    https://shop.jetvision.de/epages/648...Products/67303

    But you might want to get another dongle instead.
    My favorite gear is listed here: https://github.com/wiedehopf/adsb-wi...s-for-purchase

    Many people like the Flightaware Pro Stick Plus, it has an integrated amplifier, but together with the dark blue FA filter it's almost as much as the rtl-sdr LNA + rtl-sdr v3 dongle.

    You are looking at the FA antenna or which antenna are you looking at?

  3. #3
    Flight attendant
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    @wiedehopf,

    Thank you very much for the answer. Will take my time to study your answer. But , and please forgive me lack of knowledge, I am not sure what you mean by FA anetenna. I am living in an appartment. I am looking for a outside antenna I can use on my balcony.

  4. #4
    Captain abcd567's Avatar
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    Purchasing a commercial antenna is good option. However in the meanwhile you can improve the supplied antenna by
    (1) Placing it on a metal palte or can.
    (2) Locating it close to a window.

    Each of the above two steps will bring in substantial improvement.

    (3) For further improvement, cut the removable part of whip to 52 mm, or if you dont want to cut, unscrew the whip and replace it by a thin wire 52 mm long.

    Jetvision DVB-T + Antenna.png Optimized Whip Steel Tie Wire.jpg Optimized Whips x 2.jpg optimized mag-mount 1090Mhz 52 mm.png

  5. #5
    Flight attendant
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    @wiedehof,
    Thank you for your reply. I will take time to study your snseer. I am not sure what you mean by FA antenna. I live in an apoartment building. Placed my sntenna in front of the einfow. Looking fir sn antenna to put on my balcony or adjust on the railing

  6. #6
    Captain abcd567's Avatar
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    There are many good commercial antennas available in market. I have used only one of these, and am happy with it: the Flightaware 1090 Mhz 26 inch / 66cm Antenna. It has very good performance and a very reasonable price.

    https://www.amazon.com/gp/product/B00WZL6WPO


    Cables and connectors required for Flightaware antenna:

    https://discussions.flightaware.com/...required/41737
    Last edited by abcd567; 2019-06-17 at 21:03.

  7. #7
    Captain abcd567's Avatar
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    Another commercial antenna which I have used is the low costc PCB antenna (see photo and link below). It is not a 6 dB antenna as written on its label. It is a dipole which can at the best have a gain of 2 dBi. It performs much inferior to Flightaware or other costlier 5 or 6 dBi antennas.

    When comparing with the mag-mount whip of DVB-T placed over a metal can and cut to 52 mm, the PCBantenna's performance is somewhat better.

    PCB Antenna
    https://www.ebay.com/itm/173397271470

    pcb antenna.jpg


    Pigtail SMA-male to MCX-male
    https://www.ebay.com/itm/183717378846

    pigtail sma-male to mcx-male.jpg

    .
    Last edited by abcd567; 2019-06-17 at 20:56.

  8. #8
    Flight attendant
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    Jun 2019
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    @ABCD567

    Thank you for your reply and suggestions. Placing the antenna on a can sounds weird but will try it. As a beginner I am in no position to doubt a suggestion from a long tome member of this forum.
    My antenna is 6xm rubber top included and already placed near the window. Will unscrew it and replace it by a thin wire.
    Thanks again for the help

  9. #9
    Flight attendant
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    Thank you for your answer. But 66 cm is probably to long. The owner of my building will not accept this

  10. #10
    Flight attendant
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    I posted more answers. Guess the moderators have not yet checked them.

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