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.
Been hearing a lot of this over the last several months. Thought initially it was a stuck WEFAX transmission,. however this has been ongoing for too long for it to be that. Some type of data transmission.
This of course is WWV on 10Mhz. Nice easy arm chair copy. Hear on January 18 @ 1420 UTC