Transient Electromagnetic (TEM) Systems

SkyTEM Systems can be optimised for Targeting Needs

Overview

SkyTEM continues to deliver innovative airborne electromagnetic TEM systems that match scalable system configurations to achieve project-specific goals, from detailed near-surface exploration to deep target imaging, even combined with GRS and B-field.

The latest developments include newly developed High Power (HP) systems mounted on a revolutionary rigid and lightweight carbon frame. The new generation of systems are specifically designed to:

Explore deeper and at higher elevations

Improved characterization of geology and conductors through the use of integrated B-field and exploration proven 12.5 Hz repetition frequency

Reduce exploration costs due to fast flying (up to 150 km/h) and increase production with lightweight frames

Review data within 48 hours – allowing clients to customize systems within a few hours.

Valuable attributes across the range of SkyTEM TEM systems

Fast turn-off time and early time data.
One-time calibration procedure eliminates the need to conduct high altitude calibration/verification flights at regular intervals during each sortie, thereby minimizing or eliminating data levelling and post flight corrections.
Advanced deliverables within 48 hours of acquiring the data for early review so that decisions on flying in-fill or other lines can be made while the crew and system are still on site.
Negligible signal drift.
Depth of penetration can be customized to suit the geology and the systems can be configured remotely in-flight.
The system is very robust and can fly in challenging weather conditions
The extremely high signal to noise ratio and close-to-ideal square-wave-form contribute significantly to increasing confidence in the delivery of high resolution data.
All sensors, including the magnetometer and spectrometer are mounted on the rigid carrier frame ensuring all measurements are recorded close to the ground for increased accuracy and the collection of the highest lateral and horizontal resolution obtainable.

SkyTEM Systems

OPTIMISED FOR YOUR
EXPLORATION TARGETING NEEDS

SkyTEM304

SUPERIOR HIGH
NEAR-SURFACE EXPLORATION

Water, Mineral Exploration & Geotechnical

SkyTEM304 has been employed worldwide since 2004 for a wide range of applications including mineral, geotechnical engineering solutions and most of the globally acclaimed SkyTEM water mapping projects. Like all SkyTEM technology the current in the coil turns off within a few microseconds. Bias free measurements begin at 7 µs. Combined with late time recordings out to 10 ms SkyTEM304 is the only system proven to deliver accurate data from the top few metres to depths of up to 350 m.

FEATURES

  • Compact rigid frames 342 m2 transmitter area
  • Up to 150,000 NIA
  • High Moment (HM) and Low Moment (LM) data
  • Very fast Low Moment (LM) turn-off time
  • High signal-to-noise ratio (SNR)
  • Up to 120 kph
  • Deliver accurate data from the top few metres to depths of ~200 m

BENEFITS

  • Superior high near-surface resolution
  • ULTIMATE discriminator in subtle conductivity contrasts

SkyTEM312

NEAR-SURFACE &
DEEP EXPLORATION

Water & Mineral Exploration
(well suited for regional mapping)

The SkyTEM312 with twelve transmitter loop turns collects both near surface and deep data. This system has a dipole moment of ~500,000 NIA and operates at speeds of up to 150 km/h with a transmitter and receiver terrain clearance of 50 metres. The performance of SkyTEM312 is built on an exceptionally rigid and aerodynamic carrier frame that maintains the low noise levels necessary to provide fine discrimination in the near surface data while retaining the ability to detect weak conductors at depth. This dual-moment capability makes the system ideal for both mineral exploration and groundwater mapping purposes.

FEATURES

  • Compact rigid frames 342 m2 transmitter area
  • Up to 500,000 NIA • High Moment (HM) and Low Moment (LM) data
  • High signal-to-noise ratio (SNR)
  • Up to 150 kph (312 FAST)
  • Deliver accurate data from the top few metres to depths of ~500 m

BENEFITS

  • High near-surface resolution and depth of investigation
  • Improved characterisation of deeper geology
  • More economical

SkyTEM306HP

HIGH POWER

NEAR-SURFACE & DEEP EXPLORATION

Water & Mineral Exploration
(well suited for regional mapping)

The SkyTEM306HP (High Power) with six transmitter loop turns collects both near surface and deep data. The SkyTEM306HP can be configured with SkyTEM’s breakthrough MultiMoment innovation for faster turn-on and turn-off, recorded by fully digital 3 channel receivers. Furthermore, SkyTEM306HP can be configured in FAST mode, featuring an aerodynamically superior system reducing acquisition costs by flying at speeds of up to 150 km/h, providing an economically viable alternative to fixed wing, particularly when cost-effectiveness and data quality are crucial parameters.

FEATURES

  • Compact rigid frames 342 m2 transmitter area
  • Up to 500,000 NIA
  • High Moment (HM) and Low Moment (LM) data
  • SkyTEM’s breakthrough MultiMoment receiver
  • High signal-to-noise ratio (SNR)
  • B-field
  • Up to 150 kph (306HP FAST)
  • Deliver accurate data from the top few metres to depths of ~500m

BENEFITS

  • High near-surface resolution and depth of investigation
  • Improved characterisation of deeper geology
  • More economical

SkyTEM312HP

HIGH POWER

DEEP EXPLORATION

New fully fledged Mineral
Exploration system

Optimized for exploration at increased depth, the single-moment SkyTEM312HP with 12 transmitter turns combines a small frame and high power to achieve depths of penetration obtained previously by much larger and heavier systems. The SkyTEM312HP can be configured with a peak moment up to 1,000,000 NIA. This high power system is optimized to provide an exceptional depth of investigation due to the high moment (HM) mode with high current and low base frequency of 12.5 Hz

FEATURES

  • Compact rigid frames 342 m2 transmitter area
  • Highly powerful, up to 1,000,000 NIA
  • High Moment (HM) and Low Moment (LM) data
  • SkyTEM’s breakthrough MultiMoment receiver
  • Low base frequency (12.5/15 Hz) to measure extended late off-time data
  • Outstanding late time signal-to-noise ratio (SNR)
  • B-field
  • Up to 80 kph
  • Verified down to depths of +700 m

BENEFITS

  • Penetrates thicker and higher conductivity overburden
  • Improved characterisation of both deeper and highly conductive geology
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