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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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  • Live stream from 1420MHz hydrogen-line 86cm Ptarmigan Triffid Dipole Array
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  • SHOOS - SARA Hydrogen-Observing Overall Survey
  • Telescopes at Lichfield Radio Observatory
VLF Radio Detection of SIDs (Very low Frequency detection of Sudden Ionospheric Disturbances)
December 13, 2023 Admin

Sudden Ionospheric Disturbance (SID) Monitors

SIDs are changes in the ionosphere total power detected when solar flare hits the atmosphere. The power is detected from

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Radio Astronomy
December 7, 2023 Admin

Major problems with multiplying interferometer

I think I bit off more than I could chew by deciding to build a multiplying interferometer based on AD8302

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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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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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