| 
              
                Maintained
                  by Renato Romero
                  |  | CUMIANA VLF MONITORING STATION Live data from CUMIANA (TO), NW
                          Italy, south Europe
 |  Lat. 44° 57’ 21,924’’ N Lon. 7° 25’ 16,435’’ E
 To see on google map click this link  https://goo.gl/maps/7wviV5M8BV9T6F2A9
 
 Electric Field: Marconi Antenna (Ogg/Vorbis Stream)
                    + Geophone
 Audio
                signals coming from Marconi antenna: a big "T" 10 m high
                with 15 m long top hat.  A live Ogg/vorbis stream is at  http://abelian.org/vlf/live-stream.php?stream=vlf15
 Alternatively, if timestamps are required, use  http://abelian.org/vlf/live-stream.php?stream=vlf15&ts=1
 ...which includes a timestamp stream in the Ogg
                container.
 
 
 The audio streaming server is
                provided by Paul Nicholson. See at Paul's page "Live VLF Natural
                Radio" for others audio stream available: http://abelian.org/vlf/
 
 
 VLF
                    monitoring 
 Here below the first LIVE
                spectrogram, updated 30 minutes. It shows the last 8 hours VLF
                activity, as received by Marconi antenna (vertical
                electric field).
 
 Marconi Antenna + Geophone
 
 Amplitude scale: two channels
              listed below.
   
               Channel 1, seismic monitor.
                  Frequency range: 1 to 30 Hz for the top spectrogram.
                  Signals coming from geophone I/O SENSOR Nederland b.v.
                  model SM-4/UB8 (see at SM-4_Brochure.pdf) 40
                  dB amplified with a very low noise preamplifier. Channel 2, electric field.
                  Frequency range: 1 to 105 Hz for the bottom one.
                  Signals coming from Marconi antenna, with a low noise
                  current preamplifier, placed at the bottom of it 
                  (LNVA_20-24).   Picture, every 30 minutes, shows last
                8 hours. All date and times are in UTC. The scroll time is 40 s, and FFT
                frequency resolution 21 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).
 
 
 Electric filed multistrip daily
                representation, useful for comparing anomalies from day
                to day:
  
 Scroll time 110 sec, updated every 30
                minutes, FFT frequency resolution 10.5 mHz.
 Geophone Multistrip hourly
                representation, useful for local seismic events
                correlation:
 Scroll time 4.6 sec, updated every 60
              minutes, FFT frequency resolution 112 mHz 
   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 every 30 minutes.
                Four traces are reported:  
               Geophone
                      trace , it shows the average and peak
                  signals coming from the geophone sensor, in 1-20 Hz
                  range. ULF
                      noise 10 Hz , it shows the medium
                  value between 3 and 30 Hz. ELF
                      noise 100 Hz , it shows the medium
                  value between 30 and 300 Hz. 2th SR
                      freq. , it shows the frequency of
                  second Schumann resonance (in Hz). 
     
 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.
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