While experimenting with my clock distribution amplifier, I found that this board creates a lot of interference to my HackRF receivers. Plus, it’s not very convenient to work with a bare board. I decided to build metal housing for this board. This is just a little note about its construction and some nuances.
Low noise and low cost amplifier for radio astronomy, 21 cm band
21 cm band, also known as the Hydrogen line, is one of the important bands in radio astronomy. Please read this Wikipedia article if you not familiar with the Hydrogen line. Nowadays, even radio amateurs can observe this signal from outer space, thanks to modern hardware. One of the most important parts of any receiver is the antenna and input…