On 1485, there is a continuous beeping, it looks like it is part of an AM modulation. It is very strong and audible via many SDRs in Germany and NL.
In Eastern Europe, it looks like it is less strong. For me it looks like it comes from Western Germany/Benelux.
http://nndatentechnik.dynv6.net:8080/
Marco (2023-04-26)