Bubbler on 18.085MHz USB?
 

What is the very wide bubbling noise in the 17m ham band?
I've heard it a few times now and I have no clue what it is nor where it
originates. I've used some different receivers on DXtuners and it's
widely receivable over both north and south america.

Any ideas on this one?
Thanks!

Bob O.

It's Automatic Link Establishment. See
http://groups.yahoo.com/group/hflink

and there is a piece of software PC-ALE you can get that will decode
it.
--

jhhaynes at earthlink dot net