Regarding SatNOGS Network - Observation 12387382
I’ve recently had a lot of observations give these weird helix spirals that plague my waterfalls. I know this is interference, but I cannot figure out how to get rid of it.
My first instinct was dropping the gain, but both my station accuracy percentage and my collection of data drops (using ConnectaIoTs and other satellites as baseline tests across gain settings). However, with the same gain causing the issue I also get this waterfall that came out clear: SatNOGS Network - Observation 12387424 I’ve ruled out weather related issues, as this interference persists during storms and clear/sunny weather.
I’m looking for anything I can do to clean this interference up while being able to keep the gain at a level where I can attempt to get weaker signals to support the SatNOGS mission.
Any help would be greatly appreciated. Thanks!
Update, when viewing my v4 directly with SDR++, I see a moving dip about .02M wide moving left to right across my waterfall. When switching back to my RTL-SDR v3, the entire zoomed in waterfall is even across the viewing window (with the exception of a couple of spikes which look like signal?).
Update, reinstalling the drivers and making sure they are the latest according to RTL-SDR seemed to do the trick on my testing VM. Will migrate changes to my Pi running the station and retest there with observations.
Hopefully this helps anyone else having the same issue.
Happy satellite hunting everybody!
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sudo apt purge ^librtlsdr
sudo rm -rvf /usr/lib/librtlsdr* /usr/include/rtl-sdr* /usr/local/lib/librtlsdr* /usr/local/include/rtl-sdr* /usr/local/include/rtl_* /usr/local/bin/rtl_*
sudo apt-get install libusb-1.0-0-dev git cmake pkg-config
git clone https://github.com/rtlsdrblog/rtl-sdr-blog
cd rtl-sdr-blog
mkdir build
cd build
cmake ../ -DINSTALL_UDEV_RULES=ON
make
sudo make install
sudo cp ../rtl-sdr.rules /etc/udev/rules.d/
sudo ldconfig
Using rtlsdrblog’s drivers for this setup. Will see how this goes.
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SDR/UpdateDrivers.sh at main · 3mi55ary/SDR
Created a Linux shell script to automate this process. Making updates as I go.