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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

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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 Magnetometer
  • Live feed from UKRAA PicoMuon Muon Detector
  • 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
Radio observation in hydrogen line (1420MHz)
December 3, 2023 Admin

First light on additive interferometer

Experiencing difficulties with my multiplying interferometer (which means it doesn’t work yet!), I am trying a simpler additive interferometer using

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

Determining the galactic rotation curve of the Milky successfully with my 1420MHz array

Galactic rotation curve from my data: Below shows exercise of picking points for curve above in my data: Compare my

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Radio observation in hydrogen line (1420MHz)
November 30, 2023 Admin

Interferometer test rig

My proposed test rig for interferometer, although I intend to change the splitter to power splitter. Andy

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Radio observation in hydrogen line (1420MHz)
November 30, 2023 Admin

The 2 aerials of LIMA (Lichfield Interferometer Mini Array) 30/11/23

I still don’t think my interferometer is going to work! But here the 2 x Nooelec 1420MHz mesh antennae that

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Radio observation in hydrogen line (1420MHz)
November 30, 2023 Admin

Getting closer to the horizon on 1420MHz array…..

I have added some extension arms to the elevation mechanism on my homemade wooden mount for my 1420MHz hydrogen array

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Radio observation in hydrogen line (1420MHz)
November 28, 2023 Admin

The hydrogen map develops!

The arms of the Milky Way are beginning to emerge in my 1420Mhz radio telescope using ezRA software and 86

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Radio observation in hydrogen line (1420MHz)
November 23, 2023 Admin

“First Light” of AD8302 Interferometer Board….without aerials!!

I decided to see what output came out of the AD8302 phase comparator on my interferometer board – no aerials.

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Radio observation in hydrogen line (1420MHz)
November 20, 2023 Admin

Processing ezCol_Data 201123@1300 (End 1st map 1420MHz Milky Way (6 elevation data points))

Results of my first mapping exercise of Milky Way at 1420.405Mhz from Lichfield, UK, covering available sky in this area.

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Radio observation in hydrogen line (1420MHz)
November 20, 2023 Admin

Results of mapping Milky Way 1420.405Mhz (Hydrogen) 20 November 2023 @ 01:00

RTL-SDR Blog V3 Software Defined Radio Ptarmigan Triffid 86 x 86 ex-military dipole array antenna ezRA software for collection and

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Radio observation in hydrogen line (1420MHz)
November 18, 2023 Admin

“Completed” 1420.405Mhz(Hydrogen) Radio Interferometer Receiver based on AD8302 chip 18/11/23

“Completed” Radio Interferometer Receiver for 1420.405MHz Hydrogen work……well, I say completed = also needs 2 x coax cables with SAWBird+

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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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