Does this mean in practice that there is no practical reason to need any other type of feed other than cantenna or loop feed for a small amateur radio astronomy…
Information from Alex Pettit: Courtesy of Marcus Leech & CCERA: It is Spot On. Two Bright Areas Dec+40 dg RA 2030 hrs Dec+20 dg RA 0615 hrs On small systems,…
On a Qorvo PCB/module, pins labeled VDD, GND, and VPD are standard power/control connections, but each has a specific role: 1. VDD (Supply Voltage) 2. GND (Ground) 3. VPD (Power-Down…
https://www.astronomy.me.uk/wp-content/uploads/2026/04/Andrew-Thornett-presentation-SARA-Drakes-Lounge-190426.pptx
The weather forecast for the forthcoming week in Lichfield is lots of cloud and rain. Even where episodes of sunshine break out, these will be brief, and rapidly give way…
On a headless Raspberry Pi, the simplest way is just via SSH and a couple of built-in Linux commands—no GUI needed. Quick & easiest (recommended) Run: You’ll get something like:…
Let’s troubleshoot this step by step—on a Raspberry Pi 4, Baobab can fail for a few common reasons. First: what exactly happens? When you try to run it: If you…
What you did should work in principle, but there are a couple of very common gotchas when cloning Raspberry Pi SD cards—especially when increasing size. Let’s go through the likely…
wire dia : #18 ga or so is fine .. Nothing is exact .. or perhaps reworded ” It is impractical to attempt to derive an equation for the electrical…
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