FM demodulation looks mysterious in GNU Radio because it’s one tidy block… but under the hood it’s actually very simple. FM is just information encoded as changes in instantaneous frequency.…
https://gitlab.com/gnuradio_book/flowcharts
Ahhh yes, welcome to the “why are we multiplying things?” club 😄 — this is actually the heart of how a radio works. Short answer:You multiply the incoming RF signal…
Here’s a comparison of Paradar X-400 Ultra‑low‑loss Coaxial Cable (often called X-400) versus standard LMR‑400 Coaxial Cable (Per Metre) (the well-known low-loss 50 Ω coax): 📡 Purpose & Positioning X-400…
https://www.astronomy.me.uk/wp-content/uploads/2026/02/How-to-run-Alex-Pettit-3D-project-using-Ted-Cline-scripts-ezRA-191124.docx https://www.astronomy.me.uk/wp-content/uploads/2026/02/Alex-Pettit-Rinearn3D_QuickSettings02-041225.docx https://www.astronomy.me.uk/wp-content/uploads/2026/02/Full-Instructions-for-creating-4D-images-in-ezRA-Rinearn3D-250125@2330.docx https://www.astronomy.me.uk/wp-content/uploads/2026/02/Instructions-from-Ted-Cline-on-using-ezCol-data-with-Rinearn3D-RinearnHow241021a.pdf
John’s description of how to make his VLF Receiver & Antenna: https://www.astronomy.me.uk/wp-content/uploads/2026/02/SID-Station-using-Spectrum-Lab.docx Spectrum Lab Meteor Configuration File: https://www.astronomy.me.uk/wp-content/uploads/2026/02/workingconfig-6-feb-2026.zip
https://www.astronomy.me.uk/wp-content/uploads/2026/02/Calculating-pyramidal-horn-gain-different-apertures-080226.pdf
This series appeared in the April 1973, June 1973, August, 1973, October, 1973, April 1974,December 1974, and the August 1976 issues of QST magazine.Copyright 1973,1974,1976, 1999 American Radio Relay League.…
Following is relevant to when you have a video or audio file, and you want to turn its speech into an editable text document (like a transcript): 🔧 Options for…
Yeah, you’re not imagining it — AliExpress search can feel wildly off-topic. That’s not you, that’s how it’s built. Here’s what’s going on behind the curtain 👀 1. It’s not…
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