Radio observation in hydrogen line (1420MHz)

3D plot in Rinearn3D from Alex Pettit 13-element 1420 MHz Yagi at LRO clearly showing two spiral arms 0-90 degrees longitude (data up to 5/6/2025)

By Admin

By Admin

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Radio observation in hydrogen line (1420MHz)

If I want to make a bigger version of the SETI Horn of Plenty, still for 1420 MHz, how do I increase the dimensions?

Admin
Radio observation in hydrogen line (1420MHz)

How does flared section of hydrogen line horn antenna scale with changes in wavelength measured?

Admin
Radio observation in hydrogen line (1420MHz)

Find me an URL for original SETI Horn of Plenty dimensions

Admin

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