Short answer: the SAWbird H1’s gain is essentially fixed by its RF amplifier bias network and SAW filter — within the manufacturer’s recommended supply window (≈3.3–5.5 V) you should see…
Here’s what’s inside — i.e. the chips used: In short: R820T2 tuner + RTL2832U demodulator/ADC. Since you’re already familiar with SDR and radio-astronomy, here’s a summary of the key components…
You can add a folder shortcut to the Ubuntu desktop by holding down Ctrl + Shift while dragging the folder from the file manager to your desktop. Alternatively, you can…
To update a snap app, first completely close the app by using killall in the terminal. Then, use sudo snap refresh to update all snaps, or sudo snap refresh to…
Hi Andy, https://www.astronomy.me.uk/wp-content/uploads/2025/11/B210_stats.grc_.txt https://www.astronomy.me.uk/wp-content/uploads/2025/11/baa_seminar_USRP_IF_RF.grc_.txt The BAA seminar flowgraph won’t work without some further modules (created by Marcus Leech). I can explain this to you. The B210 fg is what I…
Here’s what does — and when/how you might use it: ✅ What the device does 🔎 Typical Uses / Why People Use It This kind of RF/EMF meter is commonly…
I was using a screen recorder (Debut) to record a Microsoft Teams meeting tonight. However second half lost its sound, which occurred after I ran a GNU Radio Companion script…
https://www.astronomy.me.uk/wp-content/uploads/2025/11/How-to-back-up-entire-Ubuntu-system-291125.docx https://www.astronomy.me.uk/wp-content/uploads/2025/11/How-to-back-up-entire-Ubuntu-system-291125.pdf How to back up entire Ubuntu system (content of downloadable versions above repeated below in this post): From https://askubuntu.com/questions/7809/how-to-back-up-my-entire-system 29/11/2025 Refer to this howto: http://ubuntuforums.org/showthread.php?t=35087 FILES In simple…
From Dave’s brilliant data set suppled 27/11/2025 – (c) Dave Bracey 2025 – all rights reserved. Taken using Dave’s 150cm homemade backyard radio telescope in Bromyard, England, UK, 2025.
✅ When copper-wire properties start to matter. 1. Inductance becomes noticeable around ~10 kHz and up A typical straight copper wire has about: Inductive reactance: Example for L = 1…
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