Hi,
Instead, I would rather try a PoE (Power over Ethernet) solution - to feed the whole set from the place where you have the Internet connection. Nearby the router maybe.
You need a poe capable cable, too.
Example for an overkill cable, thinking of the future, spending just a bit more.
PoE capable cable
Thanks for the reply, this is the cable iām looking at. 10m USB 3.0 SuperSpeed Repeater Extension Cable Male to Female Active [008325] 5055383483259 | eBay . At the moment I have got the airspy mini connected to the Pi 4 followed by the coax upto the preamp just before it connects to the antenna itās self. So the plan was to move the Airspy up to the preamp just under the antenna to cut out the coax completely thus saving a load of loss hopefully 
.
Completely unnecessary. After the preamp a bit of loss via coax isnāt relevant.
ahhh ok thank you Wiedehopf. This is the current noise levels I have over the last 7 days.
Sorry, here is the link to my graphs, if you can tell me if anything looks off to you please. www.yorkradar.duckdns.org/graphs1090
How do you get these fancy Airspy specific graphs. I donāt get those on Graphs1090.
Thatās how I installed my graphs long ago and I keep updating them periodically. But I specifically donāt have an āAirspy Noiseā graph. Do you need the latest version of Airspy ADS-B to get that? a different version of graphs?
Run re-run the install script and it should update your graphs.
I just did. I still donāt have Airspy Noise. Although I am running the previous version of Airspy ADS-B. Do I need to upgrade to the newest version?
What version of airspy adsb are you running? The more recent version is needed for the graphs, and it also has significantly better performance.
You can upgrade to the latest beta RC (though itās basically stable - had it running for a year without issue) here.
Try
sudo systemctl restart graphs1090
You know I have thought about doing that upgrade. But I have been waiting for the README to get updated with information on what all the new command line options do so I didnāt have to pour back through a 4000 post topic like this one. Is there somewhere that explains all that new stuff?
Ok I decided to rebuild my system with the latest PiAware SD card and the newest AirSpy software. All I can say is great job to @prog and @wiedehopf and all other contributors on the new AirSpy_ADSB. It really is fantastic. Iām running Auto Gain at 12MSPS (I see under 400 flights per day) and my positions at 200+ nm have increased over 5x. I may not see too many flights but I can cover a huge area (well over 200,000 sq mi) and the new software has just optimized that even more. Great work.
My setup is a RPi 4 with an AirSpy mini. Iām using the FlightAware 1090 antenna, and an RTL-SDR Triple Filtered LNA at the antenna. Iām using a bias-T purchased off of eBay to inject power and running that off an Apple 5W USB charger. The antenna is mounted using a J-mount in the gable end of the highest peak of my roof.
edited for clarity
I have been doing this for well over 7 years now (2014) and the whole community has come a very long way. And the tools at our disposal are just so much better. I remember getting my first blue SDR stick (You know which one Iām talking about if youāve been around a while), setting it up on a computer and getting dump1090 to run and watching the output in text. So cool. And the hobby has just gotten better and better.
Anyone heard from @wiedehopf recently? I havenāt seen any posts for ages, hope heās OK.
He was active on the adsbx discord server yesterday, so heās still about. I guess heās been quiet on here because thereās not been much development happening recently - everything has reached a pretty decent and stable state.
Hi @ all,
I donāt get the Airspy mini to work on my rPI4, so tried again using the current official SD card image āPiAware Image on Raspbian Linux 8.2 ZIPā.
Then I did:
1.) configured wifi and set the IP to 192.168.1.28
2.) enabled ssh
3.) ran the command:
sudo bash -c "$(wget -O - https://raw.githubusercontent.com/wiedehopf/airspy-conf/master/install.sh)"
4.) checked the url to see any flights: http://192.168.1.28/skyaware/
Nothingā¦ no single flight is displayed.
My other rPI3 with the FlightAware Stick is working just fine.
Any ideas what I could have missed!?
i looked back over my notes from a couple of years ago. here is what i have:
after running the install script then the following:
ctrl o
then
ctrl x
then
sudo systemctl restart airspy_adsb dump1090-fa
hope this helps