This forum needs a wiki for the location of all the various scripts and threads. There’s a lot of useful information and tools but scattered across dozens of threads and posts.
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I’ll move on the newer thread. I keep forgetting stuff and have to navigate back and forth trough this thread… sometimes I don’t even know what I am looking for, so “search” won’t help 
That worked partially:
192.168.1.197
Graph available at: http:///dump1090-fa/data/graph.png
Well it needs to be in the right place 
In this case it needs the IP= in front.
IP=$(ip route | grep -m1 -o -P 'src \K[0-9,.]*')
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I figured it out the second I have looked again, was getting ready to edit my post, but you caught me… not paying attention
Yeah, that worked.
You can turn posts here into “wiki” format.
But everyone can edit them.
We could still try it here or just collect links on a github wiki.
I’ve moved out my scripts of the wiki repository, you are welcome to add /change stuff.
Also left the graph scripts there, now you can edit them directly if you want.
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how do you get that ‘current gain’ display?
I just installed graphs and have been browsing this thread.
I have a Pi3 with 1090-fa running with a gain of -10 and I’m getting .030% of strong messages.
I’m about 7.5 from a small regional airport and about 90 miles south of Atlanta Airport.
Any starting suggestions on a gain.
With that few strong signals, you are best off leaving the gain at -10, which is effectively maximum, since you aren’t getting any overloading. I assume from that that you aren’t using any kind of preamplifier - if you choose to install one, then you will likely need to reduce the gain a bit, but at the moment it’s not necessary.
Edit - I see from your other post you have installed the graphs already. That will help when it comes to making comparisons if you change anything later.
All I have is the FA antenna, an FA filter and a NooElec R820T SRD & DVB-T dongle.
Another dongle would be better. FA ones have amplifiers inside.
True.
I am using the blue FA pro plus and needed to reduce the gain even with my indoor antenna.
Located 50 km away from FRA airport the closest aircrafts are at approx 2000 feet passing my home.
With a gain setting to -10 i still got up to 10% of messages > -3dB
-10 is the highest gain.
To whom did you reply?
I know what “-10” means 
And caius stated it already
I’ve actually already ordered the blue pro plus from Amazon. So hopefully in a week or so I’ll have it installed and work on the gain some more. I didn’t know much when I purchased the first one. It was a kit that came with the Pi.
Thanks.
Have fun with it.
I started with the blue stick directly. Not because i got the information but simply because a german shop offered it as a bundle with a Raspi, SD Card and Antenna which was absolutely ok from pricing perspective.
Meanwhile the shop is out of stock with unknown date getting new sticks.
Yeah, I need to do something in this gain area. At -10 I get a lot of local traffic but as that traffic increases from the local airport the range goes way down. In the wee hours of the morning I get some long range Fedex flights.
That’s normally not how it works.
The AGC shouldn’t react because the bursts are short.
More likely your range goes down due to interference that is stronger during the day.
From what I’ve been reading if you have a gain that’s too high it can allow closer airplanes transmissions to step on planes that are farther away. Is that not the case? Maybe I should go back and read it again.
“There is an intermediate stage where only some message of a plane get decoded because the others are too strong, so position updates might get slower before no position is detected anymore.”