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

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

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  • Live stream from 1420MHz hydrogen-line 86cm Ptarmigan Triffid Dipole Array
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  • SHOOS - SARA Hydrogen-Observing Overall Survey
Radio observation in hydrogen line (1420MHz)
October 5, 2023 Admin

Frustration, Frustration, FRUSTRATION, AHHHH! Hydrogen line radio observing can be hell!

After my previous posts in which I have very excitedly described my recent successes observing Milky Way at 1420MHz, I

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Meteor detection by radio
October 4, 2023 Admin

Meteor radio observations for Lichfield Radio Observatory visible on the web

My meteor observations from Lichfield Radio Observatory are now available online via the RMOB website: https://www.rmob.org/#Andrew%20Thornett Andy

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Radio observation in hydrogen line (1420MHz)
October 3, 2023 Admin

72 hour drift scan through Zenith (Cygnus part of Milky Way)

My drift scan has now reached 3 days – the repeated high signal of Milky Way can be seen in

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VLF Radio Detection of SIDs (Very low Frequency detection of Sudden Ionospheric Disturbances)
October 3, 2023 Admin

When there is too much gain on VLF SID Receiver!

I am grateful to the help of Andrew Thomas yesterday for helping me to tune my very low frequency (VLF)

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Radio observation in hydrogen line (1420MHz)
October 2, 2023 Admin

Results of two day drift scan of Milky Way at 1420MHz (hydrogen line) using SDR, HNA and Phased Array.

On the plot below, the bright orange areas indicate when high signal has been detected, and green dots represent my

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Radio observation in hydrogen line (1420MHz)
October 2, 2023 Admin

Further plots from ezRA suite of my hydrogen data from Milky Way

Plots from ezRA suite:

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Radio observation in hydrogen line (1420MHz)
October 1, 2023 Admin

Plotting hydrogen of Milky Way

At last! Pretty sure I have now managed to transfer my data to ezRA suite to produce some nifty plots!

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Radio observation in hydrogen line (1420MHz)
September 29, 2023 Admin

Successful detection of atomic hydrogen in Milky Way using phased array and SDR

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Radio Astronomy
September 25, 2023 Admin

Two lessons I have learnt about practical aspects of radio-astronomy

Two important lessons I have learnt over last week,.by making these errors:

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Radio observation in hydrogen line (1420MHz)
September 22, 2023 Admin

Mounting the Ptarmigan Triffid Military Phased Array to allow altitude to be varied.

Photos below show my attempt today to mount the array so that I can aim at Zenith and vary altitude

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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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