Radio observation in hydrogen line (1420MHz) – Page 2 – astronomy.network The Website of Lichfield Radio Observatory (LRO)

Andrew Thornett, Lichfield, England, M6THO, andrew (at) thornett (dot) net

Ideal thickness for copper feed for cantenna at 1420 Mhz

The ideal thickness (gauge) of copper wire for the feed in a cantenna (typically for Wi-Fi at 2.4 GHz) depends on

Link below takes you to web-page where you can compare the hydrogen line spectra you have detected with your radio

I used a screen recorder to record time-lapse of the ezCol screen over 24 hours then choose the frame with

A simple way to test an antenna with a NanoVNA involves connecting the antenna to the NanoVNA, calibrating the device using

I came across pictures of scaler rings for feedhorns and had a conversation with ChatGPT on whether such a ring

ChatGPT suggested following April 2025: Great — optimizing the feed for your 2 m dish at 1420 MHz will ensure you’re getting the most

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

My new map (below). In this new map, I felt that only two arms (Perseus and Outer Arms) could be

https://www.astronomy.me.uk/wp-content/uploads/2025/04/ezRA_ProgramsData_from_LRO-H1_RT_250425.zip