The information provided on this website is provided for reference purposes only, No warranty is provided for its use. You should check information provided with independent data sources before using…
https://sidstation.loudet.org/sw-en.xhtml
VLF (Very Low Frequency, 3–30 kHz) behaves quite differently from higher-frequency radio because the wavelength is enormous (10–100 km). Under polar ice caps, two main propagation situations exist: These give…
Click on link below to download: https://www.astronomy.me.uk/wp-content/uploads/2026/03/John-Berman-SID-Presentation-BAA-VLF-Meeting-160326.pdf
Hi Andrew We now have a new page giving access to the radio astronomy section’s monthly meeting videos, and also videos from the specialist radio astronomy sub-groups: hydrogen line, GNU…
At 20 kHz you’re really designing a resonant system, not just adding a tuner box. For your kind of radio astronomy / interferometry work, the most practical approach is a…
Short answer: yes—but not in the way you’re probably expecting. 🚫 Off-the-shelf ham tuners: no All the usual amateur ATUs—like only cover roughly 1.8–30 MHz (HF). Even the “wideband” ones…
For a VLF loop antenna used to monitor Sudden Ionospheric Disturbances (SIDs), the received signal strength mainly depends on the loop area × number of turns, not simply the total…
70cm aerial for UKRAA 23 kHz receiver: The 134cm LRO Aerial:
Click on link below to download – provided as ZIP file – unzip this into your Spectrum Lab configurations folder: https://www.astronomy.me.uk/wp-content/uploads/2026/03/LRO_VLF_Config_works-with-134cm-aerial-LRO-PC-10-210226@1800.zip
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