https://wiki.gnuradio.org/index.php/Tutorials

They sound similar, but they serve different purposes in the signal chain: LNA (Low-Noise Amplifier) LNB (Low-Noise Block Downconverter) ✅ In

Short answer: at 1420 MHz you’re probably running out of front-end signal, not software. FM at ~100 MHz is insanely

Reproduced from Wikipedia 9/9/2025. Fast Fourier transform A fast Fourier transform (FFT) is an algorithm that computes the discrete Fourier transform (DFT) of a sequence, or

From Ted Cline 9/9/2025: The spike at frequency zero is just a consequence of the fact that your signal does

Here’s a compact, practical comparison of the popular low-to-mid cost SDRs you named (RTL-SDR v3/v4, ADALM-PLUTO, Ettus B210, LimeSDR family)

Here’s your image of Harwell Campus to set the scene: Meteorology-Relevant Facility at Harwell Campus RAL Space (Science and Technology