Yesterday I tried a complete other #hydrogenline setup, different antenna, the Nooelec Sawhird H1 LNA and the #hackrfone SDR instead of my spectrum analyzer.

Result was good 😃 A clear peak at 1420.544MHz, about 40kHz Doppler shift, with a decent SNR.

I used ‘GQRX’ but found it a bit annoying to tune, it took quite a while before I got the picture you can see. I wanted to zoom much more, but couldn’t make it work.

So what SW do you use for radio astronomy?

Anyway, the signal passed the ‘double sanity check: 1) Disconnect power to the LNA: it goes away. 2) Rotate the antenna away from the Milkyway: it goes away - rotate back: it returns 😃

#hamradio #hamr #astronomy #stem #rfengineering #rfengineer #electronics