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  • Meowzlodey
    replied
    Thank you very much!

    Leave a comment:


  • wiedehopf
    replied
    I would not bother with a connector, just build the antenna into the cable.

    But yeah, the connector will work.

    Leave a comment:


  • Meowzlodey
    replied
    I understand about cable. Last question: is this connector ok for spider-antenna?
    Attached Files

    Leave a comment:


  • wiedehopf
    replied
    The impedance should be 50 Ohm, but 75 Ohm can work as well.
    The problem is, that the cable you will get at the market won't be the same as in the radio shop.

    Just get the low loss RG6 satellite cable and make the connection to the dongle work.

    You should have no problem building the quick spider.
    Will be better than the telescopic antenna.

    I'd recommend going 2 or 3 mm shorter for the main whip than described in the thread.
    I suppose you can experiment a bit if you want and just solder on new wire if you want to make it longer again.

    The radial length isn't as critical, just leave them as is.

    Leave a comment:


  • Meowzlodey
    replied
    " 2x5 cm to 13 cm telescopic antenna"
    Also I know one huge radio shop where I can find datashets for all cables(but they are in russian).
    What resistance(impendance) and what attenuation coefficient should the cable have?
    Thanks for helping!

    Leave a comment:


  • wiedehopf
    replied
    What is a "standard antenna"?

    Anyway i don't suppose the local market is gonna have a datasheet with attenuation for that cable?
    At 2m it's not that critical anyway, try to find good quality satellite cable (low loss), an F connector and an adapter to SMA (or even better a SMA connector you can put on that cable.

    If you have one of those small indoor antennas, your best bet is just making your own antenna: https://forum.flightradar24.com/thre...g-No-Connector
    Last edited by wiedehopf; 2019-09-29, 19:24.

    Leave a comment:


  • Meowzlodey
    replied
    My budget is 10-15$, I am living in Moscow, Russia. I would buy cable at the local market. I am using standard antenna, going with Rtl-Sdr V3; cable length is 2 meters.

    Leave a comment:


  • wiedehopf
    replied
    What's your budget and what location are you?

    Which antenna are you using and how long will the coax be?

    Leave a comment:


  • Meowzlodey
    replied
    What type of coax-cable should I buy?
    Last edited by Meowzlodey; 2019-09-29, 18:31.

    Leave a comment:


  • wiedehopf
    replied
    Does a reboot help?

    Really not sure what the problem is.
    You have the log enabled so you can check that if you want.

    less /var/log/fr24feed/fr24feed.log

    Press Shift-G to get to the end of the file and see if you see any errors.

    Leave a comment:


  • Meowzlodey
    replied
    Before it was using onle
    Ethernet. Now it is using only WiFi.

    Leave a comment:


  • wiedehopf
    replied
    How could it send data without WiFi before you connected it?

    Using both Ethernet/wired LAN and WiFi at the same time is not recommended in case you are doing that.
    That can cause problems, just disconnect the LAN if you want use WiFi.

    Leave a comment:


  • Meowzlodey
    replied
    After I connect raspberrypi to WiFi it stops sending data to FR24, but I can see planes using Dump1090.
    What is wrong?Screenshot_1.jpgScreenshot_2.jpgScreenshot_3.jpg
    Should I change some settings?

    Leave a comment:


  • wiedehopf
    replied
    If you can get the LNA it will be much better than this filter.
    Especially the rtl-sdr v3 having no amplifier doesn't really need a filter. (could even reduce range depending on conditions)

    Try to get CFD200 or LMR200 cable with SMA connectors.

    Quadshield RG6 satellite cable is ok also and can be cheaper. But you'll likely need adapters to F connectors.
    You can build a quick spider on one end of the RG6 so this can be quite practical.

    Leave a comment:


  • Meowzlodey
    replied
    I want to buy coax cable but I don't know which cable should I take. What impedance(resistance) value is best for my receiver?

    Leave a comment:

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