[RFI] New Noise on 80 m

[Yuri Onipko]

Happy New Year to everybody.
For the last few days I have new terrible noise on 80 m. It covers all band
from 3.5 to 4 MHz, I can hear it also on 160 m, but slightly weaker.
You may hear the recording here:
http://www.rigexpert.net/80m_noise.wav
I recorded it on 3505 in CW mode with 2.0 kHz filter. The strength is a bit
over S9 on my FT1000D.
The noise has constant amplitude and does not change throughout the band.
Needless to say that I can't hear a damn thing on 80 now... :-((
I wonder if someone may tell me what can it be and where do I start to track
the source down.
I hate big cities!

Thanks in advance.

73 Yuri  VE3DZ