VLF RECEPTION

 Below is the spectrum 14KHz to 62KHz at 5pm 23/9/2020 at BH23 8DU using a random wire around 150 feet long via a 100KHz low pass filter and a 9:1 unun

About ten teletype signals are shown and not all the signals are identified

Horizontal lines are due to impulse interference

Pictures are up to 1600 pixels wide rather than my standard 1024 so you can see more detail.

 

 

Below is a picture of the 80m band a little later with G4EJM in QSO using the 3.615MHz AM channel 

That elevated noise section extending from about 3.75MHz is annoying and might be getting picked up from wires to a BT telephone pole close to the long wire.

 
 

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