Radio observation in hydrogen line (1420MHz)

Nooelec mesh antenna tuned for 1420MHz

I recently received one of these from Amazon – at first sight it looked like it was the same as the same company’s 1.7GHz GOES mesh dish, but with larger feedhorn. However, I put the two side by side, I could see thst the mesh dish is slightly bigger, the feedhorn larger and the stalk for mounting the feedhorn a bit longer. Also it is white rather than silver in colour and there is SMA connector rather than N-type connector on it, and is more expensive….Otherwise it appears to be the same!


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