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

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Fullband View (135.6 - 138.0 kHz)

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

Transatlantic Waterhole (137775 - 137781 Hz)

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

European Transmit Window (136168 - 136176 Hz)

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

High Resolution Spectrogram around 137780 Hz

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


     TA and Eu screenshots last 24h - Opera Deep-Search correlation detections     
     Colour Direction Finder Description - Loran-C Live Grabber - VLF Grabber