Using long Yagi antenna tuned for 1430 MHz for 1420 MHz
A long Yagi antenna tuned for 1430 MHz can still work at 1420 MHz, but with reduced efficiency and some detuning effects.
Read more
astronomy.network The Website of Lichfield Radio Observatory (LRO)
Andrew Thornett, Lichfield, England, M6THO, andrew (at) thornett (dot) net
TV satellite frequencies in the USA
TV satellite frequencies in the USA vary depending on the satellite, provider, and whether the service is free-to-air (FTA) or
Read moreBeamwidth, Half-Power Beamwidth, Field of View
The amount of sky covered by a radio telescope is typically referred to as its field of view (FoV). Key
Read moreResults LRO-H2 Mapping exercise 11/4/2025-1/6/2025 (processed 1/6/2025)
These are the results so far of my mapping exercise with the 1.5m parabolic solar cooker dish (LRO-H2): Powerpoint Presentation
Read moreLRO-H1 Map 2 (cf Wikipedia H-Line Map July 2024 proc 260425@2200) – labelled
This version of the map has been relabelled, due to errors in the previous labelling system.
Read moreLinux Ubuntu for Radio Astronomy: Script to install radio astronomy packages in Ubuntu
https://www.astronomy.me.uk/wp-content/uploads/2025/05/astro-radio-repo.zip https://www.astronomy.me.uk/wp-content/uploads/2025/05/astro-radio-setup.zip
Read moreNight Sky Talk for RAG 30/5/2025
https://www.astronomy.me.uk/wp-content/uploads/2025/05/Night-Sky-Talk-RAG-300525-FINAL-250525@1500.pptx https://www.astronomy.me.uk/wp-content/uploads/2025/05/Night-Sky-Talk-RAG-300525-FINAL-250525@1500.pdf
Read moreCheapest way to make a new waveguide monopole
The waveguide in the centre of antennae sich as cantennae are made of a copper quarter wave monopole. The cheapest
Read moreezRA (Easy Radio Astronomy): How to change Azimuth in a group of ezCol files after these were recorded using a parameter in ezCon 25/5/2025
The following parameters allow ezCon to override the azimuth or elevation embedded within the data files from ezCol and use
Read moreFirst LRO PicoMuon detector weekly variation results 25 May 2025
This graph compares last week’s results with those found at a professional observatory in Finland (latter is neutron flux but
Read more