The following comes from CHATGPT, when I asked it this question April 2025: Upgrading from a 1.5 m dish to a 2 m dish for observing the 1420 MHz hydrogen line will yield…
My new map (below). In this new map, I felt that only two arms (Perseus and Outer Arms) could be labelled with confidence: Map with labels: Map without labels: I…
https://www.astronomy.me.uk/wp-content/uploads/2025/04/ezRA_ProgramsData_from_LRO-H1_RT_250425.zip
At last, successfully got this working! 13-element Patch Yagi tuned to 1420 MHz by Alex Pettit from USA (member of SARA). First light below – ezRA (Easy Radio Astronomy) used…
My latest attempt to generate a map of the Milky Way at hydrogen line 1420.405 MHz on LRO-H2 radio telescope. Download data below (ZIP file): https://www.astronomy.me.uk/wp-content/uploads/2025/04/LRO-H2SCRT-Map-Data-14-240425.zip Results from processing in…
Here is an excellent summary of differences between monopole and dipole antennae. This comes from https://resources.pcb.cadence.com/blog/monopole-vs-dipole-antenna and was accessed 16/4/2025: Key Takeaways Dipole (left) vs monopole (right) antenna diagrams Linear…
I used cable ties to locate centre of opening of cantenna waveguide = I tested them in microwave – only very slightly warm after 2 mins suggesting little absorption at…
Very useful for radio astronomy – allows astronomer to integrate data collected in SDR# over a period of time. Download ZIP of latest IF Average plug-in on link below: https://www.astronomy.me.uk/wp-content/uploads/2025/04/IFAverage-Plugin-for-SDR-download-271224.zip
Data I have collected so far suggests I am having some flexure in the waveguide supports which changes as the elevation angle changes. Additionally, my measurement of the elevation is…
Admin