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

Astronomy observatory in Staffordshire, England.

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

Astronomy observatory in Staffordshire, England.

  • Live feeds at Lichfield Radio Observatory (LRO)
  • Calculators
  • Telescopes & Associated Equipment at Lichfield Radio Observatory
  • History and description of Lichfield Radio Observatory (LRO)
  • Publications & Presentations
  • Links to other observers’ SID monitoring sites
  • SHOOS – SARA Hydrogen-Observing Overall Survey
  • Contact me
Uncategorized

Location of videos where Microsoft Teams saves recorded meeting

Admin August 15, 2025 No Comments

If Microsoft Teams recorded your meeting, the location of the video depends on your Teams setup and whether your organization uses Microsoft Stream (classic) or OneDrive/SharePoint (the newer default). Here’s…

Linux for Radio Astronomy

How to fix Stellarium Planetarium Application freezing when launched under Linux Ubuntu

Admin August 14, 2025 No Comments

Written with the help of ChatGPT, 14 August 2025: If Stellarium isn’t responding when you launch it under Ubuntu, it’s often either a graphics driver issue, a missing library, or…

Linux for Radio Astronomy

astro-all meta package in Linux Ubuntu

Admin August 13, 2025 No Comments

Here’s the direct link to the astro-all package on the Debian website: If you’d prefer a version from the current stable release (Bookworm) or the previous stable (Bullseye), the Debian…

Linux for Radio Astronomy

Install range of astronomy software under Linux Ubuntu

Admin August 12, 2025 No Comments

sudo -s sudo apt install astro-all

Linux for Radio Astronomy

How to create a meta-package for Debian Astro (the Pure Blend) that bundles a selection of astronomy-related packages.

Admin August 11, 2025 No Comments

You’re looking to create a meta-package for Debian Astro (the Pure Blend) that bundles a selection of astronomy-related packages without causing the installation to fail if some of them don’t…

Radio observation in hydrogen line (1420MHz)

RG142 coaxial cable performance at 1420MHz

Admin August 11, 2025 No Comments

RG142 is a high-performance coaxial cable that works very well at 1420 MHz (the neutral hydrogen line) for radio astronomy applications. Here’s the key info: Parameter RG142 Type Coaxial, silver-plated…

Windows

Several third-party apps for Windows that provide detailed breakdowns of your storage usage.

Admin August 7, 2025 No Comments

There are several third-party apps for Windows that provide detailed breakdowns of your storage usage, including a more organized and visual view of both files and folders, sorted by size.…

Radio observation in hydrogen line (1420MHz)

BAA RA Section H-Line group meeting #4 hosted by Dr Andrew Thornett

Admin August 5, 2025 No Comments

https://m.youtube.com/watch?v=3dDvH_jVHms

Uncategorized

Impedance of simple dipole 📡

Admin August 5, 2025 No Comments

The impedance of a simple dipole antenna is the measure of how much resistance and reactance it offers to the flow of alternating current (AC) at a given frequency. It…

Uncategorized

Narrowband post-processing in Affinity Photo Software

Admin August 3, 2025 No Comments

According to ChatGPT….. To do **narrowband post-processing** in **Affinity Photo**, especially for astrophotography (e.g., H-alpha, OIII, SII), you can follow a structured workflow. The idea is to map each narrowband…

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Categories

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Recent Posts

  • Wind damage to LRO-H3
  • Online interdigital RF cavity filter designer
  • Alex Pettit’s new RFI removal regime in H-Line 3D
  • Tell me what a SID (Sudden Ionospheric Disturbance) is and what range of frequencies are covered when monitoring for SIDs.
  • Are there disadvantages of using SAWBird H1 vs Cavity filter?

Recent Comments

  1. Admin on Signal attenuation (loss) for common coaxial cables at around 1.42 GHz (1420 MHz), relevant for builders of amateur Hydrogen Line radio telescopes.
  2. Alex Pettit on How can a 50 ohm resistor be used to produce reference signal on a radio telescope with 50 ohm impedance?
  3. Alex Pettit on How can a 50 ohm resistor be used to produce reference signal on a radio telescope with 50 ohm impedance?
  4. Bill S.N. on How can a 50 ohm resistor be used to produce reference signal on a radio telescope with 50 ohm impedance?
  5. Stephen Arbogast on How can a 50 ohm resistor be used to produce reference signal on a radio telescope with 50 ohm impedance?

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You missed

Uncategorized

Wind damage to LRO-H3

Uncategorized

Online interdigital RF cavity filter designer

Uncategorized

Alex Pettit’s new RFI removal regime in H-Line 3D

Uncategorized

Tell me what a SID (Sudden Ionospheric Disturbance) is and what range of frequencies are covered when monitoring for SIDs.

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

Astronomy observatory in Staffordshire, England.

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