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astronomy.network The Website of Lichfield Radio Observatory (LRO)

astronomy.network The Website of Lichfield Radio Observatory (LRO)

Andrew Thornett, Lichfield, England, M6THO, andrew (at) thornett (dot) net

  • Calculators
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  • Equipment List at Lichfield Radio Observatory
  • Grafana Dashboard Cosmic Watch Detectors
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  • Links to other SID monitoring sites
  • Live data from UKRAA Sudden Ionospheric Disturbance Monitor at LRO (SIDs)
  • Live feed from SuperSID monitor
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  • Live feed from UKRAA PicoMuon Muon Detector
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  • Live stream from 1420MHz hydrogen-line 86cm Ptarmigan Triffid Dipole Array
  • Privacy Policy
  • Publications & Presentations
  • SHOOS - SARA Hydrogen-Observing Overall Survey
Testing radio astronomy equipment
June 17, 2025 Admin

NanoVNA vs TinySA

The TinySA and NanoVNA are both compact, affordable test instruments used in radio frequency (RF) and electronics work, but they

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Radio observation in hydrogen line (1420MHz)
June 12, 2025 Admin

3D plot in Rinearn3D from Alex Pettit 13-element 1420 MHz Yagi at LRO clearly showing two spiral arms 0-90 degrees longitude (data up to 5/6/2025)

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Linux for Radio Astronomy
June 9, 2025 Admin

Linux Ubuntu for Radio Astronomy: Common causes and fixes when you’re already in the dialout group but still get “permission denied” when accessing /dev/ttyUSB0

If you’re already in the dialout group but still get “permission denied” when accessing /dev/ttyUSB0, here are the common causes and fixes: 1. You need

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Computer equipment for astronomy
June 9, 2025 Admin

Local Host URL

The localhost URL is typically “http://localhost” or “http://127.0.0.1“. This address allows your computer to communicate with itself, often used for

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Computer equipment for astronomy
June 9, 2025 Admin

How to change from internal to external speakers on Dell Precision M6800 laptop

To make your Dell Precision M6800 automatically or manually switch from internal speakers to external speakers (e.g., via the 3.5mm headphone jack

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Radio observation in hydrogen line (1420MHz)
June 9, 2025 Admin

Evidence for existence of dark matter

Evidence for dark matter comes from multiple, independent lines of observation across astrophysics and cosmology. Here are the main ones:

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Linux for Radio Astronomy
June 7, 2025 Admin

Linux Ubuntu for Radio Astronomy: ACM0 Service for PicoMuon

The error message: means that systemd can’t find a service file named PicoMuonACM0.service. To resolve this, you’ll need to create,

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Astrophotography
June 6, 2025 Admin

Comparing image mosaic software for astrophotography

The best image mosaic software for night sky (astrophotography) mosaics depends on your goals, budget, and level of control needed.

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Radio observation in hydrogen line (1420MHz)
June 6, 2025 Admin

Reducing noise in radio telescope systems

Reducing noise in a 1420 MHz radio telescope setup (i.e., for detecting the hydrogen line) involves addressing both internal and

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Radio observation in hydrogen line (1420MHz)
June 6, 2025 Admin

Can 3dB amplifier compensate for 3dB loss in filter at 1420MHz?

If I use a filter at 1420 MHz that causes 3 dB loss and in amplifier beforehand that gives 3dB

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Recent Posts

  • Fast Fourier Transformation (FFT)
  • Why is there a central spike in frequency plots from many software defined radios?
  • Comparing Software Defined Radios for Radio Astronomy
  • Meteorology-Relevant Facility at Harwell Campus
  • Phased Arrays vs Aperture Synthesis

Recent Comments

  1. What Is the Lichfield Radio Observatory – astronomy.network The Website of Lichfield Radio Observatory (LRO) on Latest Milky Way 1420MHz hydrogen map from Lichfield Radio Observatory (LRO) 2/12/2024 from data 6/1/2024-30/11/2024
  2. Fly-through of 3D plot of Milky Way Spiral Arms created using data from LRO 1, 2 and 3 radio telescopes from start of data collection to 17 August 2025 (extended 3D slices revised version 4 September 2025) – astronomy.network The Website of Lichfiel on Latest LRO 2D Map of Milky Way Arms 2 September 2025
  3. Fly-through of 3D plot of Milky Way Spiral Arms created using data from LRO 1, 2 and 3 radio telescopes from start of data collection to 17 August 2025 (extended 3D slices version 2 September 2025) – astronomy.network The Website of Lichfield Radio on Latest LRO 2D Map of Milky Way Arms 2 September 2025
  4. Admin on In Debian and its derivatives (like Ubuntu, Raspbian, etc.), there’s no official meta-package specifically for radio astronomy
  5. Ole Streicher on In Debian and its derivatives (like Ubuntu, Raspbian, etc.), there’s no official meta-package specifically for radio astronomy

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Categories

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  • VLF Radio Detection of SIDs (Very low Frequency detection of Sudden Ionospheric Disturbances)
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