DL0AO VLF-Grabber near Amberg, JN59VK

H-field antennas: 150 m long earth dipoles, EW = east-west 265°, SN = south-north 355°, active E-field probe: V = vertical
(updated 2022-08-03)

vlf4
360° colour-DF with E and both H antennas (1 Hz FFT, 2 minute scroll)

vlf10
Slow colour-DF, using only the two earth loops (180° ambiguous)

vlf2 vlf6 vlf14
VLF wideband, 1.95 Hz FFT resolution, 2 minute scrolling, upload every 10 minutes (top: EW, middle: SN, bottom: Vertical)

vlf15
West cardioid, GBZ, NWC long path

vlf17
East cardioid, NWC short path

vlf15a
vlf17a
Phase and amplitude plots for NAA 24 kHz (west) and NWC 19.8 kHz (east)

vlf5
Alpha (RSDN-20) dashes (east cardioid, phase colour)

vlf5
Alpha amplitude and phase plots (five minute complex averaging, separately for each station and frequency)
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

vlf9
vlf9a
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)

vlf8
8.27 kHz, 3.8 mHz, 1 minute scroll (top V, bottom EW)

vlf18
5.17 kHz, 3.8 mHz, 1 minute scroll (top SN, bottom EW)

vlf12
8.27 kHz 424 µHz Colour-DF

vlf3
vlf7
vlf11
8.27 and 5.17 kHz, 424 µHz, 10 minute scroll (top: EW, middle: SN, bottom: V)

vlf16
2.97 and 1.67 kHz, 424 µHz, 10 minute scroll (V)

vlf20
8.27 kHz, 47.1 µHz FFT resolution, 1 hour scroll (W cardioid)

vlf19
ZEVS and ELF Schumann resonances, 7.63 mHz FFT, 1 minute scroll (E-field)

vlf13
vlf13a
ZEVS phase vs 82-1/86400 Hz reference, 424 µHz FFT, 10 minute scroll (top: colours R-G-B-R for advancing phase, bottom: plot)

zevs_fast
Snapshot of a fast ZEVS transmission, using 10 second symbols (45.8 mHz FFT, 5 s scroll, Feb. 2018)

Blitzortung
European lightning map from Blitzortung.org

WWLLN
World lightning map from WWLLN.net

VLF grabbers:  DF6NM  DK7FC (tree)  DL0HOT  Paul Nicholson  IK1QFK  IZ7SLZ  RN3AUS  DL0AO (LF)