H-field antennas: 150 m long earth dipoles, EW = east-west 265°, SN = south-north 355°, active E-field probe: V = vertical
360° colour-DF with E and both H antennas (1 Hz FFT, 2 minute scroll)
180° colour-DF, using only the two H-field earth loops
VLF wideband, 1.95 Hz FFT resolution, 2 minute scrolling, upload every 10 minutes (top: EW, middle: SN, bottom: Vertical)
E-field plots for some MSK stations (2.93 Hz noise bandwidth)
West cardioid, GBZ, NWC long path
East cardioid, NWC short path
Phase and amplitude plots for NAA 24 kHz (west) and NWC 19.8 kHz (east)
Alpha (RSDN-20) dashes (east cardioid, phase colour)
Alpha amplitude and phase plots (five minute complex averaging, daily 21 UT phase-steps removed)
Stations (top to bottom): Krasnodar (+10 dB), Novosibirsk, Khabarovsk, Revda (-40 dB)
Frequencies: red F1=11905 Hz, purple F4=12091 Hz, orange F2=12649 Hz, yellow F3=14881 Hz
JJY 40 kHz (Fukushima, 9142 km), 446.5 µHz FFT, 10 minute scroll (top: phase colour R-G-B-R, bottom: amplitude and phase plot)
8.27 kHz, 3.8 mHz, 1 minute scroll (top V, bottom EW)
5.17 kHz, 3.8 mHz, 1 minute scroll (top SN, bottom EW)
8.27 kHz 424 µHz Colour-DF
8.27 and 5.17 kHz, 424 µHz, 10 minute scroll (top: EW, middle: SN, bottom: V)
2.97 and 1.67 kHz, 424 µHz, 10 minute scroll (V)
8.27 kHz, 47.1 µHz FFT resolution, 1 hour scroll (W cardioid), previous image
ZEVS at 82 Hz: Snapshot of a fast transmission, using 10 second symbols (45.8 mHz FFT, 5 s scroll, Feb. 2018)
ZEVS phase, 82 Hz -29.8 µHz reference, 424 µHz FFT, 10 minute scroll (top: colours R-G-B-R for advancing phase, bottom: plot)
ZEVS and ELF Schumann resonances, 7.63 mHz FFT, 1 minute scroll (E-field), antenna levels
50 Hz grid frequency plots
World lightning map from WWLLN.net
European lightning map from Blitzortung.org
VLF grabbers: DF6NM DK7FC IK1QFK IW4DXW IZ7SLZ KL7L M0DTS SQ5BPF W1VD DL0AO (LF)