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There have been many expert and knowledgeable comments about cantenna feed design on this group and on the SARA RTOP

Website recommended by Alex Pettit: https://www.changpuak.ch/electronics/cantenna.php

To design an effective waveguide for 1420 MHz (21 cm hydrogen line), you need to consider several factors, including waveguide

Click on links below to download data: ezCol .txt data files https://www.astronomy.me.uk/wp-content/uploads/2025/01/data-300125.zip SDR Sharp data generated from conversion of above

This shows the repeated patterns of data emerging from the drift scans of LRO-H1(Ptarmigan) hydrogen line radio telescope at LRO

LRO-H3 1420MHz tuned aerial (Alex Pettit Plate Yagi) not showing difference between sky and ground. Why might this be? Handmade

This is the current batch file used with LRO-H1: REM NORMAL RESOLUTION (IE STANDARD SETTINGS) cd C:\cd C:\Data\ezRA_Program+Data\LRO\py ..\ezRA\ezCol.py -ezRAObsLat

Click on links to download the workflow: Workflow (PDF) – https://www.astronomy.me.uk/wp-content/uploads/2025/01/Andrew-Thornett-Astrophoto-Processing-Workflow-220125.pdf Workflow (.docx file) – https://www.astronomy.me.uk/wp-content/uploads/2025/01/Andrew-Thornett-Astrophoto-Processing-Workflow-220125.docx

This list needs to be added to the repository list within PixInsight: https://raw.githubusercontent.com/setiastro/pixinsight-updates/main https://www.rc-astro.com/BlurXTerminator/PixInsight https://www.rc-astro.com/NoiseXTerminator/PixInsight https://www.rc-astro.com/StarXTerminator/PixInsight https://www.rc-astro.com/TensorFlow/PixInsight/CPU https://pixinsight.astroprocessing.com https://www.ghsastro.co.uk/updates https://www.ideviceapps.de/PixInsight/Utilities

Located at: C:\Users\andre\AppData\Roaming\Pleiades