Radio observation in hydrogen line (1420MHz)

Linear power supply purchased Amazon for SAWBird H1 LNA 29/12/2025

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The idea here is to reduce variations in LNA performance as power spikes up and down in power supplies by using a linear power supply.

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Radio observation in hydrogen line (1420MHz)

Plots of data collected using Brian Coleman’s self-made hydrogen-line feed placed at correct (I think…but maybe not?) focal point on the LRO-H2 telescope (150cm Solar Cooker Radio Telescope) & pointed towards either outer Milky Way (1 spiral arm seen) or inner Milky Way (2 spiral arms seen) 16 May 2026

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Radio observation in hydrogen line (1420MHz)

My 150cm LRO-H2 hydrogen line radio telescope is pointed azimuth 168 degrees, elevation 75 degrees, and collecting data by 24-hour transit scans. Which Milky Way parts does it pass through when trace shows one or two arms?

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Radio observation in hydrogen line (1420MHz)

Painting hydrogen line radio telescopes at LRO with metal-protective paint

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