I run Piaware 1.15 and use dump1090 on a Raspberry Pi B+ board with a RTL Dongle
Airflex 7 coaxial cable (similar to aircell 7) fed to the
Homemade 8element colinear up at about 25 feet
it is working fine as expected, around 4000 planes seen in a day
when I am using the RTL dongle for general receive before I changed it’s use to ADSB, I found too much noise was bought in with the wanted signal, so with this in mind I was wondering whether to play with the gain settings within the dump1090 program, as this seemed to help (using a program called HDSDR) max gain would be something like 50 and i found when putting it down to 42.1 the signal improved, so having it on max gain seemed to overload it.
I see my piaware sets it to max gain!
now a friend of mine who is also a licensed amateur radio operator is building me a filter to filter out the unwanted signals, so that may be a good way to go. a preamp is also on the cards
the question i ask is: can I use a program on the raspberry pi and if so what program? i would like it to monitor the actual adsb signal while i alter the gain within dump1090 parameters so I can set it to it’s optimal gain?
or is the piaware program written to allow the gain to be lowered if too much noise is detected from too much gain?
hope I have explained it as best as I can. So far I am really pleased with its results, I just think it can do that little better, monitoring other local adsb receivers they do over 5000 a day, But i presume this down to the equipment and antenna height?