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IK1QFK VLF
MONITORING STATION
Live data from CUMIANA (TO), NW Italy, south Europe |
(To see on google map click this link (44,96°
NORTH - 7,42° EAST)
System one: LIVE mp3 audio streaming
Audio signals coming from Marconi antenna: a big
"T" 11 m high with a double top hat 45 m long.
You can listen the audio streaming live clicking
here: http://67.207.143.181/vlf15.m3u
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The audio streaming server is provided by Paul Nicholson.
See at Paul's page "Live VLF Natural Radio" for
others audio stream availables: http://abelian.org/vlf/
Here below the first LIVE spectrogram, updated every
hour at xx:01.
It shows the last 8 hours VLF activity, as received
by Marconi antenna (electric field).
System two: GEOMAR
Amplitude scale: two channels listed below.
Picture, updated at xx:05 minutes of every hour,
shows last 8 hours. All date and times are in UTC.
The scroll time is 20 s, and the frequency resolution
42 mHz.
As the receiving station is placed not too far
from an industrial area, sometimes strong tones are detected by geophone
sensor, caused by mechanical machine (1 km far from here).
Here below the same data elaborated as plotting traces. The picture shows the last 30 hours, and values are detected every 150 s.
Picture, updated at xx:05 minutes of every hour. Four traces are reported:
System three: MINIMAL
Amplitude scale: two magnetics components of the
RDF spectrogram below.
Spectrogram: radio direction finding colors, obtained
with two orthogonal loops EW and NS oriented (see at the article http://www.vlf.it/minimal/minimal.htm
and http://www.vlf.it/minimal2/minimal2.html
for technical details). Frequency range 1 to 105 Hz. System sensitivity
of 0.5 pT @ 10 Hz.
OOS ALM //The system
is temporarily out of service
Picture, updated at xx:03 of every hour, shows last
8 hours. All date and times are in UTC.
The scroll time is 20 s, and the frequency resolution
42 mHz.
Magnetic landscape is worse than the electric one:
the receiving station, although in a country place, is placed few
km far from an high power line (380 kV !) and next to an industrial area
(1 km).
Here below the real time situation about lighting strikes in Europe. Courtesy of http://www.blitzortung.org
Unattended operations, signal conditioning, spectrograms
and RDF functions are performed with SpectrumLab: http://freenet-homepage.de/dl4yhf/spectra1.html
. Many thanks to Wolfgang Buscher for his support.
Automatic FTP process is realized with SyncBack
Freeware V3.2.14 http://www.2brightsparks.com/downloads.html.