radioguy22

3 ms·

1. 1.▲
   by radioguy22 2y ago

   Start detecting signal reflections from airplanes. With multiple synchronized receivers you can build a passive radar. Single reflections can easily be spotted by just staring at the spectrum (Doppler).
2. 2.▲
   by radioguy22 2y ago

   The RTLSDR is a great tool. But signals really be bandpassed (what the guy in the paper did) because its dynamic range is limit to only 8 Bit.
3. 3.▲
   by radioguy22 2y ago

   Yes. But nowing a bit of signal theory, hf electronics and embedded is super helpful. With 2 antennas you can start playing around with beam forming. This will enable you to scan the sky from one position without moving the antenna. Then yo