Originally posted by markend
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Hi there,
After more than a year of feeding now I'd like to show my setup to you.
Hardware:- Raspberry Pi 3 Model A+
- NooElec Nano 3
- filter + LNA
- homebrew spider antenna (find details here)
- RG174 cable
Software:- dump1090-fa
- fr24
- wiedehopf's graph1090 and gain optimization
- VirtualRadar Server
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Originally posted by abcd567 View Postmagnum:
Amazing that you could achieve your maximum range with such simple setup. Did you try placing the mag-mount antenna over a metal plate or food can?
So around Christmas time i have to find a workaround :-)
Yesterday i opened the window and placed the antenna for an hour outside without seeing an improvement.
Looks like our flat as paper thin walls......
However i will try some of the DIY antennas later, just to improve my skills
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magnum:
Amazing that you could achieve your maximum range with such simple setup. Did you try placing the mag-mount antenna over a metal plate or food can?
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Originally posted by Chucker View PostUnderstood. Since a scan saw a ton of signal activity around 870MHZ (probably from a tower less than 400m away) I have a FlightAware blue stick and filter on the way to help correct that. Then once I have optimized for the bedroom window, I'll try the attic first. If no significant improvement, then we'll try the chimney mount.
Looks ugly, but it works. For the range see my image some posts earlier. I am satisfied so far based on my location.
copper-antenna.jpg
Range-Geo-Vergleich.jpg
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Understood. Since a scan saw a ton of signal activity around 870MHZ (probably from a tower less than 400m away) I have a FlightAware blue stick and filter on the way to help correct that. Then once I have optimized for the bedroom window, I'll try the attic first. If no significant improvement, then we'll try the chimney mount.
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The NooElec antennas are very, very bad.
Just chop the whip antenna or put on a copper wire of appropriate size after unscrewing the old whip.
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Hello! South of Lake Ontario, near KROC. Just started a few days ago, running the following -
Raspberry Pi 3 B
32 GB SD card that was pre-loaded with NOOBS when I bought it two years ago
NooElec NESDR Mini with their stock antenna (not chopped at this time), stuck to the top of a soup can
Also picked up the NooElec Discovery 5dBi bundle, which has a 1090MHz SMA antenna, a 978MHz SMA antenna, and 2 male MCX to female SMA pigtail cables, but haven't used yet
Farthest I have picked is 49nm to the SW, with much restricted to the NE because of placement in western facing upstairs window. Pondering moving the Pi to the attic for higher antenna mounting either inside or on the chimney.
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Originally posted by abcd567 View Postmagnum:
Wire 42mm is too short. Should be 52mm
To improve performance, place mag-mount antenna on a metal plate or a food can. Try to place antenna near a window.
[ATTACH=CONFIG]10967[/ATTACH] [ATTACH=CONFIG]10968[/ATTACH] [ATTACH=CONFIG]10969[/ATTACH]
The antenna is alreayd on a metal plate (cookie box, unfortunately already empty) and i have identified the best place in my home office. Any other position makes the signal more worse
Next project is a DIY antenna (probably outdoor)
Which one do you think gives the best performance, compared to my current setup? I'm thinking about a spider
I have two "blind spots" to the north and south based on the environment, these i want to eliminate with the new antenna.
blind spots.jpg
Is there a realtime Linux console tool available which gives me the current signal strength of the antenna instead of placing - waiting - placing - waiting......Last edited by magnum; 2019-07-28, 04:53.
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magnum:
Wire 42mm is too short. Should be 52mm
To improve performance, place mag-mount antenna on a metal plate or a food can. Try to place antenna near a window.
Optimized-Whip-Steel-Tie-Wire.jpg Optimized-Whip-on-Plate-1.jpg Mag-mountWhip on Food Can and Near Window-1.jpg
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I started feeding a week ago.
For this i bought a bundle which was provided by a german Raspberry shop
Content
Raspberry Pi 3 B
Flightaware pro plus Stick (the blue one)
a cheap indoor antenna with magnetic socket
16 GB SD card
No idea if it will work, i simply installed the Flightaware image and was surprised that even in the living room the first aircrafts were detected. I then installed FR24 application and started feeding there aas well.
After reading a lot i removed the antenna from the socket screw and replaced it with a 42 mm copper wire, so in reality i made the cheap antenna even cheaper
I then placed the equipment in my home office under the roof indoor. After some try&error attempts i found the best antenna position indoor.
Comparing the max possible range based on the geographic location (heywhatsthere) and the real world tests after this week i can say that i'm getting close to the maximum. Next try is a DIY outdoor antenna.
This is the output of heywhatsthere and the last days of coverage (to make it easy i grabbed it from RB24 where i also feed since then). I cannot complain, especially in the area of Frankfurt there are lots of aircrafts
Range-Geo-Vergleich.jpg
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Just recently changed from an FA Prostick Plus to an RTL-SDR v3 & LNA. Seeing significant improvement. Still need to get it mounted on the roof but not fancying the ladder climb :P
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Originally posted by viking05 View PostAre you guys really using the RPI in a box outdoors? 365 days a year?
I'd really wonder if this is working, I don't think so
I think, a fan and trying to avoid direct sun light is enough to keep this implementation up and running for many years.
Many years ago, we had a whole PC running on the rooftop inside a junction box for antenna and routing purposes with no issues. Great years!
The only danger could be a nearby thunderstorm.
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Originally posted by wiedehopf View PostWhat do you think would fail?
Temperatures here are between -20 and +40° C, in the sun even more. It definitely will be a stresstest for the equipment :-)
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A secondary sun shield to keep the entire box from overheating probably helps.
But with a fan why shouldn't it work? In the winter the heat of the pi keeps the complete box at least a little bit dry or drives out moisture that might get in.
What do you think would fail?
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