This one sounds familiar, however, I do not recall the signal being so wide in bandwidth and lasting this long. Another data transmission from an unknown source. this is a short clip of it on 13605 KHz.
Jan
18
2016
Video
This one sounds familiar, however, I do not recall the signal being so wide in bandwidth and lasting this long. Another data transmission from an unknown source. this is a short clip of it on 13605 KHz.