A THIRD PATTERN OBSERVED : VERY LOW FREQUENCY PULSE SWITCHING
A third significant pattern in the Extremely Low Frequency (ELF) to Very LOW Frequency (VLF) portion of the electromagnetic spectrum has now been observed and recorded. The pattern is one of a series of higher frequencies followed by a series of lower frequencies, with a period of approximately 60-100 seconds for each group of pulses. There is no known local or residential origin for these signals. The current VLF observations are significant in that they are not continuously occurring; three segments of approximately 15 minutes duration were observed in Santa Fe, New Mexico on March 1, 2001. The switching and pulse nature of the observations abruptly ceases and starts, as is shown in graphs on this page. There is no gradual transition between the different phases, and the variation in frequencies appears to be the direct result of a constructed modulation system.