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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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October 19, 2025 Admin

How to build a horn antenna at 1420 MHz

Building a horn antenna tuned for the 21 cm (1420.405 MHz) hydrogen line is a popular and effective way to

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October 19, 2025 Admin

Measuring Earth’s Orbit at 1420 MHz

I asked ChatGPT how to do this, and here is its suggestion:

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October 18, 2025 Admin

WR-650 Waveguide

WR-650 already covers 1.12–1.70 GHz, so 1.420 GHz sits comfortably in-band—you don’t need to resize the guide. What you do need is a

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October 18, 2025 Admin

WR-14 Waveguide

The WR14 waveguide (also known as WH14) is a rectangular waveguide used for millimeter-wave applications in the K-band. Here are the key technical specifications: Parameter Value Designation

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October 18, 2025 Admin

WR-137 Waveguide

The WR137 waveguide is a rectangular waveguide commonly used in the C-band frequency range, particularly for radar, satellite communications, and radio astronomy work just below the

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October 18, 2025 Admin

WR-90 waveguide

The WR-90 waveguide is a rectangular waveguide commonly used for microwave signals, particularly in the X-band frequency range. Here’s a quick technical summary: Parameter Value Waveguide

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October 16, 2025 Admin

Active@ Disc Image of Andrew Sutkowski’s Linux Disc Image containing GNU Radio, SDR Play support, ezRA, ez-radio-astro.

Download disc image below – use Active@ Disc Image to install on new PC – install this image on USB

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October 16, 2025 Admin

Angular size of the Great Orion Nebula (M42)

Do you mean the angular size of the Great Orion Nebula (M42)?

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October 16, 2025 Admin

SDRplay RSPduo and bias tee

Yes — the RSPduo does include a bias-tee on its Tuner 2 SMA port. (SDRplay) Here are some details and caveats:

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Uncategorized
October 16, 2025 Admin

Sampling / time resolution (“sample time”) and timing behaviour of the CosmicWatch muon detector.

Here’s what I found on the sampling / time resolution (“sample time”) and timing behaviour of the CosmicWatch muon detector: Key

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Recent Posts

  • How to build a horn antenna at 1420 MHz
  • Measuring Earth’s Orbit at 1420 MHz
  • WR-650 Waveguide
  • WR-14 Waveguide
  • WR-137 Waveguide

Recent Comments

  1. Admin on Adding second monopole onto 1420 MHz cantenna at 90 degrees to first monopole in attempt to improve signal.
  2. John Bailey on Adding second monopole onto 1420 MHz cantenna at 90 degrees to first monopole in attempt to improve signal.
  3. 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
  4. 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
  5. 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

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Categories

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