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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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  • 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 Radio meteor observations and meteor counts from LRO
  • Live stream from 1420MHz hydrogen-line 86cm Ptarmigan Triffid Dipole Array
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  • Publications & Presentations
  • SHOOS - SARA Hydrogen-Observing Overall Survey
  • Telescopes at Lichfield Radio Observatory
Radio observation in hydrogen line (1420MHz)
May 2, 2025 Admin

Advantages of upgrading from 1.5m dish to 2m dish for hydrogen line radio astronomy

The following comes from CHATGPT, when I asked it this question April 2025: Upgrading from a 1.5 m dish to a 2 m dish for observing

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Radio observation in hydrogen line (1420MHz)
April 26, 2025 Admin

Re-processing and re-labelling 2nd LRO-H1 (Ptarmigan Triffid 4×4 Dipole Array Antenna) Milky Way Hydrogen-Line Map July 2025 on 26 April 2025 to correct labelling errors

My new map (below). In this new map, I felt that only two arms (Perseus and Outer Arms) could be

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Radio observation in hydrogen line (1420MHz)
April 25, 2025 Admin

Current version of Easy Radio Astronomy used on LRO-H1(Ptarmigan)Hydrogen-Line Radio Telescope 25/4/2025

https://www.astronomy.me.uk/wp-content/uploads/2025/04/ezRA_ProgramsData_from_LRO-H1_RT_250425.zip

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Radio observation in hydrogen line (1420MHz)
April 25, 2025 Admin

Successful test of LRO-H3 Radio Telescope (Alex Pettit Patch Yagi Aerial)

At last, successfully got this working! 13-element Patch Yagi tuned to 1420 MHz by Alex Pettit from USA (member of

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Radio observation in hydrogen line (1420MHz)
April 24, 2025 Admin

Processing LRO-H2 (SCRT) Milky Way Map Data 14 April 2025 – 24 April 2025

My latest attempt to generate a map of the Milky Way at hydrogen line 1420.405 MHz on LRO-H2 radio telescope.

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Aerials & Antennae
April 16, 2025 Admin

Monopole vs Dipole Antennae

Here is an excellent summary of differences between monopole and dipole antennae. This comes from https://resources.pcb.cadence.com/blog/monopole-vs-dipole-antenna and was accessed 16/4/2025:

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Radio observation in hydrogen line (1420MHz)
April 16, 2025 Admin

Testing cable ties to see if they will reduce effectiveness of parabolic reflector waveguide LRO-H2

I used cable ties to locate centre of opening of cantenna waveguide = I tested them in microwave – only

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Radio observation in hydrogen line (1420MHz)
April 14, 2025 Admin

Latest version of IF Average Plug-in for SDR Sharp software

Very useful for radio astronomy – allows astronomer to integrate data collected in SDR# over a period of time. Download

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Radio observation in hydrogen line (1420MHz)
April 14, 2025 Admin

Photos of LRO-H1, LRO-H2, and LRO-H3 hydrogen-line radio telescopes at Lichfield Radio Observatory 14/4/2025

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Radio observation in hydrogen line (1420MHz)
April 13, 2025 Admin

Upgrading waveguide supports and direction pointing indicator on LRO-H2 (SCRT) radio telescope 12/4/2025

Data I have collected so far suggests I am having some flexure in the waveguide supports which changes as the

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Recent Posts

  • Muon detection using UKRAA Picomuon detector 17/6/2025
  • NanoVNA vs TinySA
  • 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)
  • 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
  • Local Host URL

Recent Comments

  1. Admin on LRO-H1 Map 2 (cf Wikipedia H-Line Map July 2024 proc 260425@2200) – labelled
  2. VK on LRO-H1 Map 2 (cf Wikipedia H-Line Map July 2024 proc 260425@2200) – labelled
  3. QuickLink1 – astronomy.network The Website of Lichfield Radio Observatory (LRO) on Linux Ubuntu for Radio Astronomy: Script to install radio astronomy packages in Ubuntu
  4. Admin on Linux Ubuntu for Radio Astronomy: Michiel Klaassen’s UKRAA CosmicWatch Muon Detector Data Analysis Python Script 16 May 2025
  5. VK on Linux Ubuntu for Radio Astronomy: Michiel Klaassen’s UKRAA CosmicWatch Muon Detector Data Analysis Python Script 16 May 2025

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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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