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astronomy.me.uk The Website of Lichfield Radio Astronomy Observatory (LRO)

Astronomy observatory in Staffordshire, England.

  • Calculators
  • Contact me
  • Equipment List at Lichfield Radio Observatory
  • Grafana Dashboard Cosmic Watch Detectors
  • History and description of Lichfield Radio Observatory (LRO)
  • Links to other SID monitoring sites
  • Live data from UKRAA Sudden Ionospheric Disturbance Monitor at LRO (SIDs)
  • Live feed from SuperSID monitor
  • Live feed from UKRAA CosmicWatch Muon Detectors
  • Live feed from UKRAA Magnetometer
  • Live feed from UKRAA PicoMuon Muon Detector
  • Live feeds at Lichfield Radio Observatory (LRO)
  • 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

astronomy.me.uk The Website of Lichfield Radio Astronomy Observatory (LRO)

Astronomy observatory in Staffordshire, England.

  • Calculators
  • Contact me
  • Equipment List at Lichfield Radio Observatory
  • Grafana Dashboard Cosmic Watch Detectors
  • History and description of Lichfield Radio Observatory (LRO)
  • Links to other SID monitoring sites
  • Live data from UKRAA Sudden Ionospheric Disturbance Monitor at LRO (SIDs)
  • Live feed from SuperSID monitor
  • Live feed from UKRAA CosmicWatch Muon Detectors
  • Live feed from UKRAA Magnetometer
  • Live feed from UKRAA PicoMuon Muon Detector
  • Live feeds at Lichfield Radio Observatory (LRO)
  • 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
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December 30, 2025 Admin

Calculating Cantenna Dimensions Talk for BAA Hydrogen Line Sub0group meeting 5/1/2026

https://www.astronomy.me.uk/wp-content/uploads/2025/12/Calculating-Cantenna-Dimensions-for-H-Line-Meeting-050126-DRAFT-301225@2330.pdf https://www.astronomy.me.uk/wp-content/uploads/2025/12/Calculating-Cantenna-Dimensions-for-H-Line-Meeting-050126-DRAFT-301225@2330.pptx

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December 30, 2025 Admin

Testing antenna aimed at cold sky vs hot ground – can this be conducted in daytime or must it be done at night?

QUESTION:Testing antenna aimed at cold sky vs hot ground – can this be conducted in daytime or must it be

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December 30, 2025 Admin

Recording of data collection on LRO-H2 (Solar Cooker Radio Telescope) 28/12/2025

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December 29, 2025 Admin

Linear power supply purchased Amazon for SAWBird H1 LNA 29/12/2025

The idea here is to reduce variations in LNA performance as power spikes up and down in power supplies by

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December 29, 2025 Admin

YERKON 1.13-1.73GHz BJ14 WR650 Waveguide Coaxial Adapter Converter purchased from ebay 29/12/2025

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December 29, 2025 Admin

My own attempt at completing homework exercises from BAA GNU Radio Group Meeting 29/11/2025: Create an electronic keyboard which plays multiple music chords, and create an AM radio player

My GNU Radio Companion GRC file that plays multiple music chords: https://www.astronomy.me.uk/wp-content/uploads/2025/12/BAA-GNU-Radio-Meeting-Exercise-Chord-Selector-201225_GRC.zip Video showing the above GRC in action: My

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December 29, 2025 Admin

Mathematical relationship between chords in music (for BAA GNU Radio Meeting homework)

To change a C major chord into a D major chord, you need to multiply the frequency of each note

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December 28, 2025 Admin

Physicists Finally Confirm the Existence of “Time Mirrors”

Summary of research article (Moussa et al., 2023): The following was published on December 26, 2025 in https://dailygalaxy.com/2025/12/physicists-prove-time-mirrors-real-with-electromagnetic-flip/ Physicists have

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December 27, 2025 Admin

How to use directional coupler to provide reference signal in Easy Radio Astronomy software (suggestions by ChatGPT 27/12/2025)

The following are suggestions from ChatGPT (effectiveness not verified, 27/12/2025): Easy Radio Astronomy (ezRA) expects a stable reference channel so it

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December 27, 2025 Admin

Using directional couplers to provide reference signals for hydrogen line radio astronomy

Andy, A directional coupler is a device which allows RF to pass along one path in either direction with very

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Recent Posts

  • Calculating Cantenna Dimensions Talk for BAA Hydrogen Line Sub0group meeting 5/1/2026
  • Testing antenna aimed at cold sky vs hot ground – can this be conducted in daytime or must it be done at night?
  • Recording of data collection on LRO-H2 (Solar Cooker Radio Telescope) 28/12/2025
  • Linear power supply purchased Amazon for SAWBird H1 LNA 29/12/2025
  • YERKON 1.13-1.73GHz BJ14 WR650 Waveguide Coaxial Adapter Converter purchased from ebay 29/12/2025

Recent Comments

  1. Admin on What is a geodesic parabolic dish?
  2. Wolfgang Hermann on Is 145mm or 165mm better diameter for hydrogen line cantenna? Is a can that is 160mm diameter x 165 mm height a good choice for this?
  3. Wolfgang Hermann on Is 145mm or 165mm better diameter for hydrogen line cantenna? Is a can that is 160mm diameter x 165 mm height a good choice for this?
  4. Yoshi Takeyasu on What is a geodesic parabolic dish?
  5. Adrian Clausall on Julian Palmer Design Monopole Probe Assembly for Cantenna 12/12/2025

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