ADSB Antenna Creation
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- Опубликовано: 19 окт 2024
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Making an ADSB antenna and masthead amplifier for PiAware ADSB Aircraft Data reception.
In the video I show how to make your own ADSB antenna and masthead amplifier and demonstrate it working.
The software for the raspberry Pi is here: flightaware.co...
SDR Dongle:
amzn.to/39m2php
Amplifier module: amzn.to/2tcdYY1
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paypal.me/mark...
You may want to add a 1090MHz filter as well. I have a 10dB gain LNA connected directly to the antenna, then the filter and then another 20dB LNA. Works like a charm.
If I may suggest, use a larger weather proof case and put the antenna into the case so you have to drill only hole where water could potentially seep in.
All good ideas - thanks!
Thank you Davros for that. Very concise and helpful.
Who is Davros?
Great information and explanation, thanks!.
Glad it was helpful!
cut to the chase, go to 4:16, however, a beginner will not understand what Mark knows but had difficulty explaining simply. 67 mm, is close to the velocity factor of 2mm copper wire. You need a micrometer and a file to get it any more accurate and to do that you need thicker copper rod or pipe that will be easier to build. The gain amplifiers are generally not needed if your receiver is at the antenna. Flight Aware USB receivers provide plenty of gain even after the filter on the Blue Stick receiver. At 10:36 he provides a good explanation of the 5 volt supply to the amp. At 11:20 he reveals the result to the test from his roof which he says, made a "drastic improvement". I did not use the same amp but one off Ebay for 1090 and the gain provided was so much that my actually number of signals received dropped significantly. Mark may be using a long coax run from the antenna to the receiver which would explain the loss without the amp and the signals gained with the amp before the coax. Overall, a nice video.
Sir thanks for the video... Is there any software I can used to design my ADSB project?
hi Mark, thanks for the video. can you offer a lonk or two where to get your bias T's from please.?
are they frequency dependantand only usable for Rx? cheers mate
here: www.ebay.co.uk/itm/NEW-RF-Translator-Bias-Tee-Bias-T-Piece-10MHz-6GHz-Bias-Tee-Pieces-Case/123515660458?hash=item1cc21b68aa:g:8goAAOSwhCBbaVQ6
They claim 10MHz to 6GHz - bias-t is used to power on RX only normally, so you would put this somewhere in the TX chain so there wasnt high RF power passing through the device - perhaps downstream of the PA bypass relay.
Don't you need to use 2 bias-T's? One with the capacitor pointed to the antenna (like your showed) the other at the receiver side would be the opposite, capacitor facing the receiver. Otherwise it will kill the front end of your receiver with DC current.
There are two; one is at the SDR dongle end and the other up in the air at the antenna. The capacitors block the DC path as you correctly say.
I wonder why the FlightAware maps make it look like night time everywhere? The whole world is dark blue! Also details are so bad I can't make out where the planes are so the whole thing is useless. The map with Virtual Radar is much better!
I swapped to FlightRadar24 some months ago - you get a "business account" with the website as a data provider.
@@MarkG0MGX Is that better than Virtual Radar?
@@stevec5000 I dont know as I've never tried it. As an engineer working in the world of civil aviation FlightRadar24 does everything I want it to do. My main requirement is to look back at actual flight paths from some months ago and I can do that fine.