2026
Admin
Changing over to Brian Coleman’s hydrogen line feed on LRO-H2 Solar Cooker Radio Telescope
Feed removed from LRO-H2 today 19/3/2026 – this is the cantenna I have been using since I got the 150cm solar cooker dish: Feed-less dish: Brian Coleman’s H-Line feed on…
Dates, times and links to join BAA Practical Radio Astronomy monthly meetings in April 2026
Dear All, Below is a reminder of the dates and times of the next monthly practical amateur radio astronomy online meetings. Please note the change to the start time of…
Muon hodoscopes
A muon hodoscope doesn’t just count how many muons hit it — it also tells you which direction they’re coming from, with pretty good accuracy. That turns out to be…
Software used by Lionel Loudet in his SID Monitoring Station
https://sidstation.loudet.org/sw-en.xhtml
How far can VLF signals be detected under Polar ice caps?
VLF (Very Low Frequency, 3–30 kHz) behaves quite differently from higher-frequency radio because the wavelength is enormous (10–100 km). Under polar ice caps, two main propagation situations exist: These give…
John Berman’s SID Presentation from BAA VLF Meeting 16/3/2026
Click on link below to download: https://www.astronomy.me.uk/wp-content/uploads/2026/03/John-Berman-SID-Presentation-BAA-VLF-Meeting-160326.pdf
New British Astronomical Association Radio Astronomy Webpage with links to monthly meeting videos on radio astronomy (BAA RAGZoom), and playlists for Specialist Online Radio Astronomy Sub-Group Meetings
Hi Andrew We now have a new page giving access to the radio astronomy section’s monthly meeting videos, and also videos from the specialist radio astronomy sub-groups: hydrogen line, GNU…
Sketch a practical 20 kHz tuning arrangement (variometer vs switched L/C vs active front-end) tailored to radio astronomy
At 20 kHz you’re really designing a resonant system, not just adding a tuner box. For your kind of radio astronomy / interferometry work, the most practical approach is a…