Noise on 160m

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Noise on 160m
160 noise.jpg
Frequencies 1933 kHzKiloHertz (kHz) 10^3 Hz1,933,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
1.933 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 1933000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).1,933 kHzKiloHertz (kHz) 10^3 Hz
1.933 MHzMegaHertz (MHz) 10^6 Hz
1933000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).1,933 kHzKiloHertz (kHz) 10^3 Hz
1.933 MHzMegaHertz (MHz) 10^6 Hz
Mode
Modulation
Location UK
Short Description

Hi, this noise has recently appeared on top band, 160m and I wondered if anyone has any idea of it's origin. Speculation is that it is over the horizon radar coming from France.

Any suggestions would be greatly appreciated since it is destroying a UK net that has been running on 1933 for many years.
I/Q Raw Recording
Audio Sample

Description[edit]

Hi, this noise has recently appeared on top band, 160m and I wondered if anyone has any idea of it's origin. Speculation is that it is over the horizon radar coming from France. Any suggestions would be greatly appreciated since it is destroying a UK net that has been running on 1933 for many years.

Noise stops at 25s and returns to standing received noise level.


This actually is something called STANAGNATO Standardization Agreement (STANAG), defines processes, procedures, terms, and conditions for common military or technical procedures or equipment between the member countries of the North Atlantic Treaty Organization (NATO).
It's highly probable this is STANAGNATO Standardization Agreement (STANAG), defines processes, procedures, terms, and conditions for common military or technical procedures or equipment between the member countries of the North Atlantic Treaty Organization (NATO). 4285, albeit heavily distorted due to multipath fading. I measured the baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. rate and it is indeed 2400 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., which is STANAGNATO Standardization Agreement (STANAG), defines processes, procedures, terms, and conditions for common military or technical procedures or equipment between the member countries of the North Atlantic Treaty Organization (NATO). 4285's baudrate. --Cartoonman (talk) 06:34, 25 July 2016 (NZST)

Additional Images[edit]

160 noise 2.jpg