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W1TAG / WD2XES    John K. Andrews   Holden, MA FN42ch   [ w1tag@charter.net ]

Information on Low Frequency Propagation

LF experimenters learn quickly that a lot of factors are involved in being able to copy signals, particularly over long distances. Noise, both local and atmospheric, is very important, but the effects of the Sun upon the Earth's geomagnetic field will ultimately determine whether you can "get through" at a given time. What's good for HF propagation is generally bad at LF, but it's not that simple! These sites provide some data and techniques used in predicting LF propagation.

Kyoto Dst Records
Temerin Estimated Dst
NOAA Kp Records
Ovation Aurora Forecast
NASA Space Weather Bureau
NOAA Space Environment Center
Grey-Line Map
US Lightning Map