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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
Radio observation in hydrogen line (1420MHz)
October 31, 2023 Admin

Nooelec mesh antenna tuned for 1420MHz

I recently received one of these from Amazon – at first sight it looked like it was the same as

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

Sorting humidity problem with computer under 1420MHz array 29/10/23

Terrible humidity problem – I had mounted receiver on piece of wooden board and fungus growing on it and each

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

1420Mhz data up until 29.10.2023

Collected using Ptarmigan array Processed using ezRA suite Plots below – data so far covers 2 data points – both

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Radio observation in hydrogen line (1420MHz)
October 26, 2023 Admin

Dimensions of Ptarmigan Triffid Array

Whole array = 86 x 86cm in size 4 x 4 pattern of dipole aerials Each dipole = 97mm in

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Radio observation in hydrogen line (1420MHz)
October 26, 2023 Admin

Installing Ptarmigan Triffid array on new wooden mount to allow changes in elevation/altitude for radio observations at 1420.405MHz (hydrogen line)

I have now installed the 86 x 86cm military array on my new wooden mount and pointed it south Andy

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

Effect of retuning software defined radio to 1420.405MHz on output of ezRA suite software 22-23/10/2023

The following link will download the SDRSharp IFAverage data set from last 24 hours – resulting from retuning the SDR

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

15 day drift scan Zenith (Cygnus complex) 1420MHz

Using Ptarmigan Triffid array. 15 day drift scan. Andy

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Radio observation in hydrogen line (1420MHz)
October 16, 2023 Admin

Questions I am keen to obtain answers to in order to move forward with my 1420MHz observing of hydrogen by radio in Milky Way 16/10/2023

The following PDF file lists questions I am keen to obtain answers to – please feel free to suggest answers

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Radio observation in hydrogen line (1420MHz)
October 16, 2023 Admin

Video of changing 1420MHz plot over several days drift scan 16/10/2023

This is not a great video – but is my first attempt and shows changes in the plot with time.

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Making own Image Intensified EyepiecesObserving Night Sky
October 16, 2023 Admin

Making an image intensified eyepiece from old generation 1 image intensifier tubes (originally published in 2009)

The document below was originally published in 2009 on www.imageintensifer.org.uk – a website that is no longer extant – note

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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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