IQ files of LEO East Coast passes
Not sure if anyone would want these, but I have modified a RPI APT weather capture program to automatically capture the LEO’s with 2 meter downlinks. The 240KHZ wide spectrum files are captured using a 137 QFH (for now), a rtlsdr and a RPI 3b.They are then converted to SDRSharp format with iqtoSharp and trimmed to the center 6 minutes of the pass with sox. Finally they are uploaded to GDrive. I then download a file when I want to listen.
On SDRSharp I set the input to IQ File and then load the downloaded IQ file. Fileplayer is a (better) plugin to use. I also click Correct IQ to eliminate the center line in rtlsdr captures. Finally I use the Baseband Noise Blanker to eliminate my neighbors TV. The spectrum files allow you to tune around the 240 kHz capture - you have to manually adjust for doppler. (i have connected GPredict to SDRSharp using the Time Controller with mixed results for doppler correction and find it easier to just adjust manually.)
As you know most of the passbands are +/- 10KHZ from the center frequency.
Each file is 165MB! The files are uploaded here:
https://drive.google.com/drive/folders/1fdqCko4e5XkTYRWZS5oJX6sz51CdhKPc?usp... https://drive.google.com/drive/folders/1fdqCko4e5XkTYRWZS5oJX6sz51CdhKPc?usp=sharing
Jeff K2DSR
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Jeff