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Type: Posts; User: YWYY

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  1. Replies
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    Its my experience that you will most likely fail...

    Its my experience that you will most likely fail in attempt to make an antenna for this freq - unless you have an antenna analyser. Most of my own attempts failed. I have just purchased this...
  2. Replies
    176
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    720,459

    For a wire collinear try this All the...

    For a wire collinear try this

    All the technical stuff to me is unneccesary

    For my own antenna construction I use the simple formula
    300 divide by freq = full wave
    300 divided by 1090 = 275 mm...
  3. Replies
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    22,168

    Acid drop, Try this you will be amazed ...

    Acid drop, Try this you will be amazed

    http://forum.flightradar24.com/threads/3831-best-antenna/page197

    Stack 2 together for better gain
    ...
  4. Thread: best antenna

    by YWYY
    Replies
    2,817
    Views
    3,697,480

    6325 I have been using this whip antenna for a...

    6325

    I have been using this whip antenna for a while, it is a 3 element wire collinier, when covered with heatshrink it was detuned and needed 60mm trimmed from the top. Now it works perfectly. I...
  5. Replies
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    22,851

    I have several RTL dongles and each requires...

    I have several RTL dongles and each requires different setup. I have a minidongle and it will run at the max rf gain - gain 49 . I have another larger rtl dongle aand it requires me to specify gain...
  6. Thread: Aussie Feeders

    by YWYY
    Replies
    1,262
    Views
    2,610,925

    I am not talking about sharers data not being...

    I am not talking about sharers data not being displayed because there are many sharers in an area, or there are F-xxxx sharers in an area I mean if your sharer acc is broken and nothing from you is...
  7. Thread: Aussie Feeders

    by YWYY
    Replies
    1,262
    Views
    2,610,925

    Seems my post was misinterpreted as a...

    Seems my post was misinterpreted as a complaint.....not so. It was just info on how to fix a feeder not showing on the FR24 map. Just create a new one!!
    I have an Airnav radarbox that I use...
  8. Thread: Aussie Feeders

    by YWYY
    Replies
    1,262
    Views
    2,610,925

    Just for your info...I too had problems with my...

    Just for your info...I too had problems with my data not showing on FR24 map. I contacted support and they didn't have an immediate fix, and were to forward it on to the technical dept. In the...
  9. Thread: discone aerial

    by YWYY
    Replies
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    5,997

    Hi if you place an antenna inside a pvc radome,...

    Hi if you place an antenna inside a pvc radome, the near effect of the pvc will de-tune it and it will need to be re-tuned once inside the pvc.
    Mike
  10. Thread: best antenna

    by YWYY
    Replies
    2,817
    Views
    3,697,480

    Also here for 2 x 8 element co-phased ...

    Also here for 2 x 8 element co-phased

    http://forum.flightradar24.com/threads/3831-best-antenna/page200

    http://forum.flightradar24.com/threads/3831-best-antenna/page201

    Mike
  11. Replies
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    8,601

    I have 8 mtrs of usb extension cable from laptop,...

    I have 8 mtrs of usb extension cable from laptop, with the dongle tied to the mast, and 1 mtr of coax to the antenna, works perfectly.
    Cheap 10 mtr active usb cables are not worth buying, spend the...
  12. Replies
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    8,601

    The antenna that comes with the dongle needs to...

    The antenna that comes with the dongle needs to be trimmed down to 69mm. It should work ok for a start, but you will need to get an antenna outside to get more range. The easiest way to get your...
  13. Replies
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    8,601

    Dylan when you say you installed the drivers for...

    Dylan when you say you installed the drivers for the dongle, do you mean that you installed ZADIG.EXE
    Or do you mean from the supplied cd

    I use this dongle, I find it decodes the most data, is...
  14. Thread: best antenna

    by YWYY
    Replies
    2,817
    Views
    3,697,480

    Hi , I spaced the beams 1.5 wavelengths - thats...

    Hi , I spaced the beams 1.5 wavelengths - thats 275mm x 1.5 = 413mm
    The feeding harness is made with multiples of 1/4 wave ..... equal lengths from each beam
    I made mine 12 x 1/4 waves total -...
  15. Thread: best antenna

    by YWYY
    Replies
    2,817
    Views
    3,697,480

    5229 5230 2x STACKED YAGIS Mike

    5229

    5230

    2x STACKED YAGIS

    Mike
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    Dylan, when you run RTL1090, at the top click the...

    Dylan, when you run RTL1090, at the top click the "test" button. That will give the receiving range of the dongle. Also make sure that the button "mode S /AC is on mode s.
    Mike
  17. Thread: best antenna

    by YWYY
    Replies
    2,817
    Views
    3,697,480

    Herman, once the 2 parts of the driven element...

    Herman, once the 2 parts of the driven element are poked through the holes and meet inside the pipe, I bent the ends at right angle with a pair of needle nose pliers, solder the coax directly to the...
  18. Replies
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    8,601

    The antenna you show has a double coil on top ??...

    The antenna you show has a double coil on top ?? from what I see. Measure from the magnetic base up 69 mm and cut off the top coil
    Also get something metal to sit the antenna on, a jam jar lid or...
  19. Thread: best antenna

    by YWYY
    Replies
    2,817
    Views
    3,697,480

    5206 As you wish Mike

    5206

    As you wish
    Mike
  20. Replies
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    8,601

    Seems its finding the usb dongle ok. Set the...

    Seems its finding the usb dongle ok. Set the TUNER AGC to off and slide the bar to the right to set the highest gain, reducing the gain untill it receives reliably. Also set the bottom tab to list...
  21. Thread: best antenna

    by YWYY
    Replies
    2,817
    Views
    3,697,480

    Hi I have designed and built successfully an 8...

    Hi I have designed and built successfully an 8 element beam for ADSB. It has the same range as my 9 element wire collinear.
    I have built 2 of these both with identical range - 270nm

    5184


    The...
  22. Thread: Aussie Feeders

    by YWYY
    Replies
    1,262
    Views
    2,610,925

    Hi you seem to have a similar receive range to...

    Hi you seem to have a similar receive range to me, I am not able to receive to the west very well due to the surrounding landscape, but east is very good. I am near "Woolies"
    Mike5027
  23. Thread: best antenna

    by YWYY
    Replies
    2,817
    Views
    3,697,480

    Thanks mate I appreciate your work Mike

    Thanks mate I appreciate your work
    Mike
  24. Thread: best antenna

    by YWYY
    Replies
    2,817
    Views
    3,697,480

    Yes I was surprised to see so much discussion...

    Yes I was surprised to see so much discussion about the coco especially after the failed attempts in the past. I still reckon my whip design is the easiest to reproduce over and over again, and know...
  25. Thread: best antenna

    by YWYY
    Replies
    2,817
    Views
    3,697,480

    abcd567, I downloaded your n4nec file of my whip,...

    abcd567, I downloaded your n4nec file of my whip, and have been experimenting with changing things around and see the results, its very helpful. I am trying to add more of the same coil / elements...
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