UFO Geek

Explorer 7 Space Fence Spectrograms

 Space Object Detection

Using the 216.980 MHz signal generated by the Air Force Space Fence as the detection tool, below are some spectrograms of objects passing through that RF fence that radiates in an upward direction from Lake Kickapoo, TX. As objects orbit above the area and pass through the space fence they reflect the 216.980 MHz frequency. Antennas pointed in a direction favorable for signal detection can receive that reflected signal These spectrograms are a product of the audio from a sideband of that frequency reflection.  Some example audio files are also included. The following spectrograms were made by me.

Explorer 7 satellite (launched in 1959) crossing Air Force Space Fence 5 Dec 2011

UFOGeek.com