Skip to content

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

How to clone a drive using Ubuntu’s own built-in tools (no extra software)

Admin October 27, 2025 No Comments

If you want to clone a drive using Ubuntu’s own built-in tools (no extra software), the most reliable options are: 🧰 1. Using dd (built-in terminal tool) This is the…

Linux for Radio Astronomy

How to install sdrutil in Linux Ubuntu

Admin October 27, 2025 No Comments

The term “SDRUtil” can refer to a few different tools depending on context (some are tied to SDRplay, others are part of more general SDR toolchains). From your past context…

SDRplay RSPduo Software-Defined Radio (SDR)

What sample rate to use in the GNU Radio SDRplay RSPDuo block for 1420MHz radio astronomy data collection?

Admin October 27, 2025 No Comments

SDR Play RSPduo – in gr-sdrplay3 module in GNU Radio it asks me to put in separate sample rate in options separate to center frequency. For 1420 MHz what sample…

GNU Radio

Function and use of “Subtract” block in GNU Radio

Admin October 26, 2025 No Comments

Good question — the Subtract block in GNU Radio Companion works on streamed numeric sample data, and the type of data it processes depends on what version of the block…

GNU Radio

You can have two (or more) instances of the GNU Radio Companion QT GUI Vector Sink block in the same flowgraph

Admin October 26, 2025 No Comments

Yes — you can have two (or more) instances of the GNU Radio Companion QT GUI Vector Sink block in the same flowgraph, but there are a few practical considerations…

GNU Radio

GNU Radio does have blocks that can subtract streamed data in real time

Admin October 26, 2025 No Comments

GNU Radio does have blocks that can subtract streamed data in real time, though there isn’t a single block literally called “Subtraction”. You can achieve subtraction cleanly in a few…

GNU Radio

GNU Radio, the “Stream to Vector” block

Admin October 26, 2025 No Comments

In GNU Radio, the “Stream to Vector” block works with streamed sample data and groups it into fixed-length vectors. Here’s a clear breakdown of how it works: 📡 Input Type…

Muon Detection

How much uranium is it legal to own without licence in UK?

Admin October 26, 2025 No Comments

How much uranium is it legal to own without licence in UK? Short answer: there isn’t a simple mass limit — UK law controls radioactive activity (becquerels), not kilograms. Small…

Radio observation in hydrogen line (1420MHz)

What is return loss?

Admin October 26, 2025 No Comments

https://www.astronomy.me.uk/wp-content/uploads/2025/10/What-is-return-loss-261025-scaled.jpg

Jupiter Radio Astronomy

Mini-Circuits SLP-21.4+ Coaxial Low Pass Filter 50Ohm DC-22MHz Data Sheet

Admin October 26, 2025 No Comments

Download data sheet below: https://www.astronomy.me.uk/wp-content/uploads/2025/10/Mini-Circuits-SLP-21.4-Coaxial-Low-Pass-Filter-50Ohm-DC-22MHz-Data-Sheet-261025.pdf

Posts pagination

1 … 82 83 84 … 143

« Previous Page — Next Page »

Categories

  • ADVISORY NOTICE & DISCLAIMER
  • Aerials & Antennae
  • Airspy Software Defined Radios
  • Astronomy Art
  • Astronomy General Articles
  • Astrophotography
  • Attending & talking at conferences, workshops & societies
  • Aurorae Boreolis
  • BlurXterminator
  • Building radio telescopes
  • Cartoons
  • Cloud Chambers
  • Computer equipment for astronomy
  • Easy Radio Astronomy Software (ezRA)
  • Frequencies
  • Geoptik Nadirus 2BW Digital Setting Circles
  • GNU Radio
  • Hardware
  • International Space Station (ISS)
  • Introduction
  • JSol'Ex
  • Jupiter Radio Astronomy
  • KerberosSDR & Raspberry PI
  • Lichfield Radio Observatory (LRO) & its Equipment
  • Linux for Radio Astronomy
  • LRO-H1 Radio Telescope (86cm x 86cm Ptarmigan Triffid 4×4 Dipole Array)
  • LRO-H2 Radio Telescope (150cm Solar Cooker Dish)
  • LRO-H3 Radio Telescope (Alex Pettit H-Line Yagi)
  • Magnetometer
  • Making own Image Intensified Eyepieces
  • Maser Radio Observations
  • Masers
  • Meteor detection by radio
  • Michel Safir
  • Microscopy
  • Minolta AF 85mm F1.4 camera lens
  • MLAstro SHG 700 Spectroheliograph
  • Multimeters
  • Muon Detection
  • My interests in astronomy
  • NanoVNA
  • Night Sky Talks
  • Non-astronomy posts
  • Nooelec SAWBird LNAs
  • Observing Night Sky
  • Photography
  • PixInsight
  • Poetry & Songs
  • Pulsars
  • Radio Astronomy
  • Radio Interferometry
  • Radio observation in hydrogen line (1420MHz)
  • RTL-SDR Blog Software-Defined Radios (SDRs)
  • SARA
  • Science Fiction
  • SDRplay RSPduo Software-Defined Radio (SDR)
  • Seestar S50 Telescope
  • SETI Horn of Plenty (Hydrogen Line Pyramidal Horn Design Antenna)
  • Settings Radio Meteor Scatter Experiment
  • Software
  • Solar
  • Solar Cooker 1.5m Parabolic Dish Radio Telescope
  • Sony Alpha 7 Camera
  • Sony Alpha 99 Full-Frame Camera
  • Spectroscopy
  • Testing radio astronomy equipment
  • The 20 Metre Skynet Radio Dish at Green Bank Observatory
  • Thypoch Simera 35mm f/1.4 lens
  • Uncategorized
  • USRP B210 Software-Defined Radio
  • Videopad Software
  • VLF Radio Detection of SIDs (Very low Frequency detection of Sudden Ionospheric Disturbances)
  • Waveguides
  • Weather
  • Website management
  • Whisper Software
  • Windows
  • Wordpress

Recent Posts

  • How to fix “rtlsdr module not found” error when running ezRA (Easy Radio Astronomy by Ted Cline) under Microsoft Windows
  • Photos and video of the PCB from Ettus B210 clone I purchased from Aliexpress
  • Comments on using Leo Bodnar LBE-1421 to produce 1 PPS output
  • Planned ALAN Radio Telescope Field of View at 1420 MHz at Walsall Astronomy Group, UK
  • I see some people give times as eg 1200Z what does the Z mean?

Recent Comments

  1. Interpretation of results from first successful rubidium lock achieved with 5650A – astronomy.me.uk The Website of Lichfield Radio Astronomy Observatory (LRO) on First successful rubidium lock achieved with 5650A rubidium time source 12 September 2026
  2. Admin on Latest working version of ezColGR – provides FFT 512 bins with Airspy Mini and saves data in ezRA text file format 10/7/2026
  3. Bill Sneed on Latest working version of ezColGR – provides FFT 512 bins with Airspy Mini and saves data in ezRA text file format 10/7/2026
  4. Floyd on How would I convert the plots on ezCon from ezRA (Easy Radio Astronomy Software written by Ted Cline) into dB?
  5. Floyd on Which state hosts Green Bank Observatory in the USA?

Archives

  • September 2026
  • August 2026
  • July 2026
  • June 2026
  • May 2026
  • April 2026
  • March 2026
  • February 2026
  • January 2026
  • December 2025
  • November 2025
  • October 2025
  • September 2025
  • August 2025
  • July 2025
  • June 2025
  • May 2025
  • April 2025
  • March 2025
  • February 2025
  • January 2025
  • December 2024
  • November 2024
  • October 2024
  • September 2024
  • August 2024
  • July 2024
  • June 2024
  • May 2024
  • April 2024
  • March 2024
  • February 2024
  • January 2024
  • December 2023
  • November 2023
  • October 2023
  • September 2023
  • June 2019
  • February 2019
  • April 2012

You missed

Uncategorized

How to fix “rtlsdr module not found” error when running ezRA (Easy Radio Astronomy by Ted Cline) under Microsoft Windows

Uncategorized

Photos and video of the PCB from Ettus B210 clone I purchased from Aliexpress

Uncategorized

Comments on using Leo Bodnar LBE-1421 to produce 1 PPS output

Uncategorized

Planned ALAN Radio Telescope Field of View at 1420 MHz at Walsall Astronomy Group, UK

All content is provided without any warranty of any kind. Use of the content of this website is entirely at your own risk, and we are not responsible for any injury or damage or loss of data or amenity arising from following advice in this website.

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

Astronomy observatory in Staffordshire, England.

Copyright © All rights reserved | Blog Card by Themeansar.