Colour Directional Spectrograms, received by DF6NM in JN59NJ - Thanks to DL4YHF for Spectrum Lab

Fullband View (135.6 - 138.0 kHz)

Scales: 5 Hz/pix (0.68 Hz FFT) - 1 s/pix - linear, fullscale 2 µV/m (unless indicated otherwise) - update every 5 min

Transatlantic Waterhole (137775 - 137781 Hz)

Scales: 21 mHz/pix - 10 s/pix - linear, fullscale 0.5 µV/m

European Transmit Window (136168 - 136176 Hz)

Scales: 28 mHz/pix - 10 s/pix - linear, fullscale 0.5 µV/m

High Resolution Spectrogram around 137780 Hz

Scales: 438 µHz/pix - 10 min/pix - linear, fullscale 50 nV/m - update every 2 hours

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