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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
GNU Radio

Problems running DSPIRA GRC (GNU Radio Companion) flow-graphs due to missing gr-radio_astro out-of-tree (OOT) module in GNU Radio installation

Admin October 4, 2025 No Comments

I am experiencing errors when I try to tun DSPIRA GRC (GNU Radio Companion) flow-graphs due to missing gr-radio_astro out-of-tree (OOT) module in my Windows GNU Radio installation. What is…

Radio observation in hydrogen line (1420MHz)

Stressed dish antennas for radio astronomy

Admin October 4, 2025 No Comments

A stressed dish (or stressed-skin parabolic reflector) is a lightweight reflector design where the parabolic surface is formed by tension and stress in the materials, rather than machining a rigid…

GNU Radio

Block diagrams of proposed GNU Radio Interferometer 4/10/2025

Admin October 4, 2025 No Comments

https://www.astronomy.me.uk/wp-content/uploads/2025/10/rspduo_interferometer_full_block_diagram_annotated_251004_172229.pdf https://www.astronomy.me.uk/wp-content/uploads/2025/10/rspduo_interferometer_simplified_block_diagram_251004_171113.pdf

RTL-SDR Blog Software-Defined Radios (SDRs)

Comparison between the RTL‑SDR Blog V3 and RTL‑SDR Blog V4,

Admin October 4, 2025 No Comments

Here’s a detailed comparison between the RTL‑SDR Blog V3 and RTL‑SDR Blog V4, along with practical implications (especially for your antenna-wire setup). If you like, I can summarise a “which…

Adjusting spectrum display’s Y-axis (dB range) in SDRConnect

Admin October 4, 2025 No Comments

In SDRconnect the controls for adjusting the dB scale / Y-axis (reference level, dB range) are under the “Primary SP display settings” section in the left panel. (SDRplay) Here’s exactly…

Adjusting spectrum display’s Y-axis (dB range) in SDRUno

Admin October 4, 2025 No Comments

In SDRUno, the spectrum display’s Y-axis (dB range) can be adjusted so you can see more (or less) of the signal rather than just the top. Here’s how: 👉 In…

SDRplay RSPduo Software-Defined Radio (SDR)

Running Two separate SDRplay RSPduo Devices in SDRuno

Admin October 4, 2025 No Comments

You actually have two completely separate RSPduo units, and you want to see both running in SDRuno simultaneously. 👍 Here’s how you can set that up: 🖥️ Running Two RSPduo…

GNU Radio

How to connect & select between two separate SDRplay RSPDuo devices in GNU Radio 3/10/2025

Admin October 3, 2025 No Comments

After a nighttime of further investigation, I have got as far as managing to connect & select between two separate SDRplay RSPDuo devices in GNU Radio. The settings in GNU…

Attending & talking at conferences, workshops & societies

Upcoming British Astronomical Society Radio Astronomy Group RAGZoom meetings Nov 2025-Jan 2026

Admin October 3, 2025 No Comments

Friday November 7th 19:30 (19:30 UTC)Dr Katharine Mulrey Associate professor – Astrophysics (Radboud University, the Netherlands)The detection of ultra-high-energy cosmic rays and neutrinos through their radio signals Cosmic rays have…

Solar

Carrington-type events but in the context of other stars, not just the Sun.

Admin October 3, 2025 No Comments

Carrington-type events but in the context of other stars, not just the Sun. 🌟 What a “Carrington Event” Is 🌠 “Carrington-Type” Events on Other Stars Begun to identify stellar superflares…

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Categories

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  • Uncategorized
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Recent Posts

  • What torque is required on drive to move 150cm dish?
  • 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.

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

What torque is required on drive to move 150cm dish?

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

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

Astronomy observatory in Staffordshire, England.

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