The ezGal510 plot needs a lot of data to fill, so it is hard to avoid data gaps. The purpose of the ezGal510 plot is to plot interpolated velocity against…
So far, only 4 elevations on both radio telescopes. Difference between this data and previous data is that each data reading is integration over approx. 4 minutes rather than previous…
I was very impressed with this very well developed project presented by SKAO on their stand at European Astrofest February 2025 in London, UK. Using items readily available in most…
I prepared this diagram of 1420 MHz telescope. Andy
Alex Pettit, of SARA, has recommended a design for making a cantenna based on using aluminium roof flashing wraped in layers to produce a tube, and a 6 inch cake…
click on link below for instructions: https://www.astronomy.me.uk/wp-content/uploads/2025/02/Calculating_patabolic_dish_focal_point_2024.pdf
There have been many expert and knowledgeable comments about cantenna feed design on this group and on the SARA RTOP yesterday by people who truly understand the subject – we…
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 dimensions, material, and feed design. Here’s a step-by-step guide to…
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