Radio observation in hydrogen line (1420MHz)

The Ka band (pronounced as either “kay-ay band” or “ka band”) is a portion of the microwave part of the electromagnetic spectrum. The designation “Ka-band” is

This video shows the frequency varies cyclically during the 24 hour period. Screenshots from this video to show hot and

Click on link below to download mirrored copy of Easy Radio Astronomy from Github – https://github.com/tedcline/ezRA – 8 March 2025

ezCol, the data collection part of ezRA suite (Easy Radio Astronomy, GitHub – tedcline/ezRA: Easy Radio Astronomy), looks like it

Click below to download product specification sheet: https://www.astronomy.me.uk/wp-content/uploads/2025/03/sawbird_h1_datasheet_revision_1080325.pdf

I used a NanoVNA vector network analyser to analyse my spare Nooelec SAWBIrd H1 low noise amplifiers. In each case,

Hi Andy, Sorry I’ve been driving all day so just seen this. I hope I’m not teaching you to suck eggs,

As 40dB attenuation in the circuit, then need to add 40dB to reading on VNA. Once this is done, it

Download Powerpoint Presentation on this analysis and problems found in system and solutions: https://www.astronomy.me.uk/wp-content/uploads/2025/03/NanoVNA-Analysis-LRO-H2SCRT-270225.pptx Download timelapse of data collection using