UKRAA Very Low Frequency Receiver
The UKRAA Very Low Frequency (VLF) Receiver is designed to indirectly record Sudden Ionospheric Disturbances¬ (SIDs) induced by solar flares.
It does this by monitoring transmissions from Earth-based beacons, which are affected by changes in the ionosphere, giving an indication of events on the Sun.
The main motivation for this work is to correlate the radio observations of solar activity with those from optical observatories, and to follow the cycle of sunspots as they appear.
Click here to find out more about observations with this receiver.