Skip to content

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

Dave Bracey’s Hydrogen Line 3D modelling of Milky Way arms

November 28, 2025 Admin

From data suppled 27/11/2025 – (c) Dave Bracey 2025 – all rights reserved.

Taken using Dave’s 150cm homemade backyard radio telescope in Bromyard, England, UK, 2025.

When copper-wire properties start to matter in RF circuits

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Comment *

Name *

Email *

Website

Save my name, email, and website in this browser for the next time I comment.

Δ

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Search

Recent Posts

Dave Bracey’s Hydrogen Line 3D modelling of Milky Way arms
When copper-wire properties start to matter in RF circuits
How an inductor works
How resonant radio frequency circuits work
How does the radio frequency SAW filter in a Nooelec SAWBird LNA and filter?

Recent Comments

Andrew Thornetr on Draft USRP B210 Software-Defined Radio Interferometer GNU Radio Companion Script 15/11/2025
Alex Pettit on Compare the performance of 80cm, 90cm, 100cm, 110cm, 110cm, 140cm, 150cm, 180cm, 240cm, 300cm, 500cm, 1000cm dishes for 1420MHz amateur radioastronomy
Admin on What are best specifications for cavity filters for 1420 MHz Hydrogen Line work?
Alex Pettit on What are best specifications for cavity filters for 1420 MHz Hydrogen Line work?
Marcus D. Leech on What are best specifications for cavity filters for 1420 MHz Hydrogen Line work?

Archives

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

Categories

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.

Copyright © 2025 astronomy.me.uk The Website of Lichfield Radio Astronomy Observatory (LRO). Powered by ColorMag and WordPress.