Timelapse of the Hydrogen line at Dec +30
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- Опубліковано 23 вер 2019
- Meridian transit spectrogram 24 hour timelapse of the 1420MHz Hydrogen line at +30Dec
Showing 1420 (lefthand side) to 1421 MHz(righthand side).
The red vertical line is the Hydrogen rest frequency of 1420.4MHz. (zero doppler shift)
setup: SDRplay2 receiver, Horn antenna and RAS vlna
recorded at Egersund, Norway by Jan Lustrup (LA3EQ)
