Yes, precisely, and that is what I was expecting, but seeing how drastically the graph changes made me look in the CSV file, and it only has that one second of data in there. I will tinker around with the program, or just run the scan directly on the RPi.
Try also scan by OPTION-1 or OPTION-3.
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Yup, already doing option 1. Should be done in about 15 min. I will run it again with the same FA stick and the cheapo antenna.
Add an external filter. Too much cell/mobile signal at 880 Mhz (GSM850)
Roger, will update on Wednesday! Thank you everyone for your help.
If it makes a difference, then there is something wrong with either the plug or the socket (probably due to poor assembly).
An N connector that is loose will not be waterproof, so your coax will deteriorate over time.
Per @abcd567 above, think about a filter. The stuff in the 900mhz spectrum is not a good thing for you.
I have the FA Ant and Blue FA dongle and after adding the Filter i have found best results with Gain set to MAX… Dropping gain was ok with no filter but after applying a filter (FA filter) and (SAW filter) i had to ramp up gain to get range back . Still getting the same range and messages on my Prod set up of the Blur FA dongle a FA or SAW filter and the trusty old Spider.
This is exactly what we were trying to determine.
Wow, this filter cleaned up the spectrum very nicely. Now to just play with gain settings to find the optimum setting. May just load up the script posted here to auto test all gain levels another RPi.
I’m clicking through the three spectrums I have and the eBay antenna is much brighter on the 1090 area than the FA antenna though.
That is always relative strength, those are the strongest signals it receives in this spectrum, even though they may be weaker compared to another setup.
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Gotcha, makes sense, ty
Let’s see i’ve ordered the same item.
Will only be able to compare it to my cantenna though.
Just for reference aigo: when you post 1 spectrum it’s really not helpful.
Make 1st spectrum, switch out antenna only and run spectrum again with same settings.
Should be interesting when you get yours as well. All spectrums were made using same FA stick, just antenna changed, and filter added.
Regarding messages/s i wonder if even with the filter outperforms the FA antenna.
I really didn’t see a difference with the new antenna delivered yesterday. So I took it down from my house and installed the FA antenna on my parent’s roof that has a better view of the sky and now the messages/second and MLAT are overwhelming my Pi0 and shutting it off every hour. Gonna have to replace it with a full size Pi or just package install it onto a junk laptop I have.
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I cannot find the original thread, so apologies for asking here.
Did you receive the ADS-B/UAT antennas and SMA/MCX jumpers you ordered?
Mine arrived yesterday, but I cannot identify which one is ADS-B or UAT.
Other than actual testing, do you know how to identify them?
I plan on installing the ADS-B antenna on a can, kind of cantenna, and see how it performs.
Got the blue FlightAware stick today and plugged into the PI no new software to install as PIAware is already installed from running the DVB stick
Anyway, a strange issue with the Nooelec 5dBi 1090MHz antenna before I could have it opened up to stand upright and it worked perfectly now when it’s screwed directly into the FA stick it only works when opened fully to lay flat 
it’s not a major issue as it picks up aircraft just seems strange why it only works fully open