I have the Airspy Mini and I have built a horn antenna, I'm using 2 LNA4ALLs and a 1420-1470 MHz bandpass filter in between them. I think I have picked up the hydrogen emission signal. I would like to

#1420mhz #21cm #radioastronomy

I realize you posted this over 2 years ago but I'm doing some radio astronomy with Astro Spy and a small homebuilt horn antenna. I would love to compare your screen shots with mine if you still have t