98-09-12 17:46:42 EDT
This may be related to the Haarp situation. You may find these two recordings interesting. One is a ten minute segment during the time the cam shot was taken. The other is a close up of signals recovered that consists of seven second bursts.
Note how similar these signals are, compared with those detected during the Labor day storm in New York.
As of this date at 21:22 UTC time this is still occurring intermittently.
The ELFRAD GROUP