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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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  • SHOOS - SARA Hydrogen-Observing Overall Survey
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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Radio observation in hydrogen line (1420MHz)
April 7, 2025 Admin

ezRA has identified an error in the recorded right ascension for data collected with one of the LRO hydrogen line radio telescopes. How does this error in right ascension affect the azimuth measurement that should be used for ezCol .txt data files?

More detail on the issue: The ezRA screen output during processing of data collected from LRO-H2 using ezCol had identified

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Poetry & Songs
April 6, 2025 Admin

Poem: Vastly Vexed at Very Large Array

Vastly Vexed at Very Large Array Poem (c) by Andrew Thornett April 2025 in the style of Robbie Burnes Vast dishes

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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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