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astronomy.me.uk The Website of Lichfield Radio Astronomy Observatory (LRO)

Astronomy observatory in Staffordshire, England.

  • Calculators
  • Contact me
  • Equipment List at Lichfield Radio Observatory
  • Grafana Dashboard Cosmic Watch Detectors
  • History and description of Lichfield Radio Observatory (LRO)
  • Links to other SID monitoring sites
  • Live data from UKRAA Sudden Ionospheric Disturbance Monitor at LRO (SIDs)
  • Live feed from SuperSID monitor
  • Live feed from UKRAA CosmicWatch Muon Detectors
  • Live feed from UKRAA Magnetometer
  • Live feed from UKRAA PicoMuon Muon Detector
  • Live feeds at Lichfield Radio Observatory (LRO)
  • Live Radio meteor observations and meteor counts
  • Live stream from 1420MHz hydrogen-line 86cm Ptarmigan Triffid Dipole Array
  • Privacy Policy
  • Publications & Presentations
  • SHOOS - SARA Hydrogen-Observing Overall Survey

astronomy.me.uk The Website of Lichfield Radio Astronomy Observatory (LRO)

Astronomy observatory in Staffordshire, England.

  • Calculators
  • Contact me
  • Equipment List at Lichfield Radio Observatory
  • Grafana Dashboard Cosmic Watch Detectors
  • History and description of Lichfield Radio Observatory (LRO)
  • Links to other SID monitoring sites
  • Live data from UKRAA Sudden Ionospheric Disturbance Monitor at LRO (SIDs)
  • Live feed from SuperSID monitor
  • Live feed from UKRAA CosmicWatch Muon Detectors
  • Live feed from UKRAA Magnetometer
  • Live feed from UKRAA PicoMuon Muon Detector
  • Live feeds at Lichfield Radio Observatory (LRO)
  • Live Radio meteor observations and meteor counts
  • Live stream from 1420MHz hydrogen-line 86cm Ptarmigan Triffid Dipole Array
  • Privacy Policy
  • Publications & Presentations
  • SHOOS - SARA Hydrogen-Observing Overall Survey
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November 30, 2025 Admin

How to add a shortcut to a folder on Linux Ubuntu Desktop

You can add a folder shortcut to the Ubuntu desktop by holding down Ctrl + Shift while dragging the folder

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November 30, 2025 Admin

How to close Snap Store Apps to allow SNAP to update in Linux Ubuntu

To update a snap app, first completely close the app by using killall [app-name] in the terminal. Then, use sudo

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November 30, 2025 Admin

GNC Flowcharts from Brett for USRP B210 SDR & Video Training links for GNC (GNU Radio Companion)

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

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November 30, 2025 Admin

What does following product do? RFandEMF TM-195: 3 Axis High Frequency/RF Measurement, EMF Meter covers 50MHz – 3.5GHz

Here’s what does — and when/how you might use it: ✅ What the device does 🔎 Typical Uses / Why

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November 29, 2025 Admin

How to avoid audio clashes GNU Radio with other devices using the audio stream on the computer running the software

I was using a screen recorder (Debut) to record a Microsoft Teams meeting tonight. However second half lost its sound,

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November 29, 2025 Admin

How to back up an entire Linux Ubuntu system 29/11/2025

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

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November 28, 2025 Admin

Dave Bracey’s Hydrogen Line 3D modelling of Milky Way arms

From Dave’s brilliant data set suppled 27/11/2025 – (c) Dave Bracey 2025 – all rights reserved. Taken using Dave’s 150cm

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November 27, 2025 Admin

When copper-wire properties start to matter in RF circuits

✅ When copper-wire properties start to matter. 1. Inductance becomes noticeable around ~10 kHz and up A typical straight copper

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November 27, 2025 Admin

How an inductor works

An inductor is one of the simplest components in electronics, but its behaviour comes from a deep physical effect: a

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November 27, 2025 Admin

How resonant radio frequency circuits work

How Resonant RF Circuits Work: Resonant RF (radio-frequency) circuits—also called LC resonant or tuned circuits—use an inductor (L) and a capacitor

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Recent Posts

  • How to add a shortcut to a folder on Linux Ubuntu Desktop
  • How to close Snap Store Apps to allow SNAP to update in Linux Ubuntu
  • GNC Flowcharts from Brett for USRP B210 SDR & Video Training links for GNC (GNU Radio Companion)
  • What does following product do? RFandEMF TM-195: 3 Axis High Frequency/RF Measurement, EMF Meter covers 50MHz – 3.5GHz
  • How to avoid audio clashes GNU Radio with other devices using the audio stream on the computer running the software

Recent Comments

  1. Andrew Thornetr on Draft USRP B210 Software-Defined Radio Interferometer GNU Radio Companion Script 15/11/2025
  2. Alex Pettit on Compare the performance of 80cm, 90cm, 100cm, 110cm, 110cm, 140cm, 150cm, 180cm, 240cm, 300cm, 500cm, 1000cm dishes for 1420MHz amateur radioastronomy
  3. Admin on What are best specifications for cavity filters for 1420 MHz Hydrogen Line work?
  4. Alex Pettit on What are best specifications for cavity filters for 1420 MHz Hydrogen Line work?
  5. Marcus D. Leech on What are best specifications for cavity filters for 1420 MHz Hydrogen Line work?

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