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muccc / gr-iridium

Iridium burst detector and demodulator.
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RTL SDR - No Iridium pulses detected #157

Open hopesourav opened 2 years ago

hopesourav commented 2 years ago

I see Iridium pulses in SDR#. I am using RTL SDR L-Band patch active antenna. However, gr-iridium could not detect anything for 1 hour. Pls, refer to the screenshot. Please let me know where did I mess up.

Setup -

  1. UBUNTU 22.04 running on VM Ware
  2. Updated the rtl-sdr.config and uncommented bias-t statement

Screenshot 2022-07-25 102021

Sec42 commented 2 years ago

My suggestion would be to use the --raw-capture option (see readme) to capture exactly what iridiume-extractor is seeing.

Then look at this file with something like inspectrum & figure out what the problem is. I suspect it is either a gain or a bias-t problem.