Adapted from advice by Alex Pettit. Alex: The Illumination of the feed is determined by the dish<>feed spacing. For small dishes, beam forming choke rings consume too much area. The…
📸 1) Sony A7 IV vs A7R III — which is better for low light/astronomy work? 🧱 Key difference in philosophy 📊 Core specs that matter Feature Sony A7 IV…
Here’s a clear, practical comparison of the Sony Alpha 99 II vs Sony Alpha 7 IV—they’re both excellent full-frame cameras, but they’re built on completely different generations and systems. 📸…
The Sony A99 and A99 II are both full-frame A-mount SLT cameras, but the A99 II is a major generational upgrade in almost every area. Here’s a clear breakdown of…
When I talk about “flattening the baseline,” I am talking about trying to remove a slow trend or curvature from my data. “2nd order” refers to a second-order polynomial—basically a…
In GNU Radio, “2nd order baseline flattening” isn’t a single built-in block—you implement it by estimating a quadratic trend and subtracting it from your signal. Here are the practical ways…
This data was collected using ezCol (Ted Cline’s ezRA suite of software). The dish is sold as a solar cooker for use on camping trips. It makes an effective hydrogen…
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https://www.astronomy.me.uk/wp-content/uploads/2026/04/Nooelec-LANA-Wideband-Low-Noise-Amplifier-Product-Specification-Sheet-Mar-2025.pdf The Nooelec LaNA is a wideband low-noise amplifier used with SDR systems. Here are the key specifications in a clear summary: 📡 Nooelec LaNA (Wideband version) specifications Frequency range…
https://youtu.be/D4ehWmEBhAE?si=U40XxTs1g43DUv4U
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