VLF Radio Detection of SIDs (Very low Frequency detection of Sudden Ionospheric Disturbances)

To get plots uploading to vlf.astronomy.me.uk

By Admin April 14, 2026

Need to run upload-v3.py on LRO-SIDS5 (134cm aerial with direct soundcard input).

By Admin

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Free dictation software on different platforms

What does 0.73 dB above background equate to in dBi for hydrogen line horn? I have a typical SETI of Plenty, 4 feet long and 3 feet wide, at 1420 MHz.

Calculating gain achieved with LRO SET Horn of Plenty using RTL-SDR V4 software-defined receiver 29/5/2026

Table comparing dB and dbi gain of SETI Horn of Plenty compared to 1m dish, 1.5m dish, 2m dish, 3m dish, 17 element patch Yagi, 86cm Ptarmigan Triffid 4 x 4 dipole array.