PASI s.r.l.

- Model ANTEO - Exploration Seismograph



ANTEO is the expression of a new philosophy for a modular exploration seismograph. The system consists of a single control & display unit (ANTEO CU) that works together one or more special cables (ANTEO AD6-x), each one with no.6x 24 bits A/D converters to be connected to any standard analogue geophone.


This means that your system can grow from 6 to any number of channels with the simple addition of more AD6-x cables, available with different geophone spacing according to your own requirements. ANTEO CU will be able to manage your system from the first 6 channels to any number of channels you will buy in the future.

The other great advantage of ANTEO is that the signal is digitalized (24 bits) directly at the geophone output, always with the best Signal/Noise ratio, independently by the geophone cable length and by any environmental disturbance.

The digital signal is transmitted to the CU for display of all traces and the following data management. 

ANTEO CU can be positioned at any AD6-x connection along the spreading: it will automatically recognise and count all geophones, performing the geophone tests and assuring you everything is OK before you start the acquisition. The real time noise monitor function will allow you to choose the best moment to shot.

  • Modular system with unlimited number of channels
  • 24 bits A/D conversion at each geophone
  • SVGA Display 8” with LED backlight
  • Linux operating system
  • Geophones test (Impedance, Frequency, Dumping, Electric Noise)
  • Record length 25000 samples (6sec@0.125msec sampling interval)
  • Sampling interval from 0.016 to 62.5 ms (all channels)

  • Seismic refraction
  • s-waves analysis (MASW, Re.Mi., Vs30, HVSR etc.)
  • Down-hole, cross-hole

  • Instrument type: Seismograph with signal digitalization 24 bits at each single geophone (it works with any kind and any freq.analogue geophone)
  • Number of signals acquired: Modular system with unlimited number of channels
  • Sampling Interval (Sampling Rate): From 0.016 to 62.5 msec
  • Record Lenght: 25000 samples (6sec@0.125msec sampling interval)
  • Preamp Gain: 0dB/40dB with automatic set
  • A/D Converter: 24 bits Delta-Sigma technology
  • System Dynamic Range: 144 dB
  • Instantaneous Dynamic Range: 118 dB
  • Input Impedance: 100 kOhm//22nF
  • Distortion: 0.001%@2msec
  • Bandwidths (Frequency Response): 30kHz@64KS/s
  • Low Pass Filters: 125-200-500-1000Hz
  • High Pass Filters: 10-20-30-40-50-70-100-150-200-300Hz
  • Notch Filters: 50-60Hz + Harmonics
  • Interface: USB 2.0 port to connect a pen drive for data download & software upgrade
  • Power Supply: 12VDC external battery, 0.5A (standby), max. 40mA/channel
  • Operating Temperature: -30°C + 80°C
  • Storage Temperature: -30°C + 80°C
  • Humidity Range: Max RH 80% non-condensing
  • Data Format: SEG-2 (other format available on request)
  • Trigger: Contact closure (piezoelectric switch), analog signal (starter geophone), contact opening (blasting with explosive), TTL triggering, trigger sensibility adjustable by software
  • Noise Monitor: Yes, all channels+trigger
  • Line Test: In-built line test to check all channels and A/D converters
  • Geophone Test: Yes (Impedance, Frequency, Dumping, Electric Noise)
  • Auxiliary Channel: 1 (for trigger or any other input signal)
  • CPU: Cortex-A9@1GHz
  • Operating System: Linux 3.0.5
  • Display: SVGA 8’’ with LED backlight
  • Touch Screen: 4wire resistive
  • Data Storage: Solid state flash memory
  • Optional Connectivity: Ethernet, WI-FI, Bluetooth, RS232, RS485, USB client GPS, etc.
  • GPS: Optional integrated receiver for georeferencing of the measurements and timing
  • Dimension: ANTEO CU: 339mm x 295mm x 152mm
  • Weight: ANTEO CU: less than 3 Kg

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