Innovation and Reliability Since 1980

MagVLF Integrated System



Integrated UAV Magnetometer and VLF-EM System

MagVLF technology

The MagVLF is a cutting-edge geophysical solution that combines GEM Systems’ high-sensitivity DRONEmag™ magnetometer and VLF-EM system into a single, lightweight UAV platform. Designed for simultaneous magnetic and electromagnetic data collection, MagVLF delivers powerful insights for geological, mineral, and environmental surveys—especially in remote or hard-to-access areas.

Key Features

Dual-Sensor Integration

DRONEmag™ (GSMP-35U and GSMP-25U)

  • Industry-leading sensitivity: 0.2 pT @ 1 Hz
  • Lightweight UAV package
  • High-speed sampling up to 1000 hz

VLF-EM System (GSM-90AVU)

  • Measures in-phase & quadrature components of the vertical EM field
  • Dual-station operation with orthogonal coils for noise reduction
  • Frequency range: 15–30 kHz

Benefits

One Payload, Two Datasets
Capture both magnetic and VLF-EM data in a single flight, reducing time and operational costs.

Optimized for UAVs
Compact, lightweight, and easy to integrate with multirotor or fixed-wing UAVs.

High-Resolution Results
Acquire precise geophysical data for deeper insights in complex terrains.

Radio Link
Radiolink offers many advantages such as data transmission, communication and visualization with GEMDAS.

Industry-Leading Warranty
Backed by a 3-year warranty, providing peace of mind and long-term value.

Applications

The MagVLF’s versatility translates a wide range of applications, catering to the diverse needs of various industries:

  • Mineral exploration
  • Geological mapping and structural interpretation
  • Environmental and hydrological studies
  • Remote or difficult-to-reach survey zones

SPECIFICATIONS

Magnetometer Performance (GSMP-35U / 25U)

Sensitivity:  GSMP-35U: 0.0002 nT @ 1 Hz / GSMP-25U: 0.022 nT  @ 1 Hz 

Resolution: 0.0001 nT 

Absolute Accuracy: ± 0.1 nT

Dynamic Range: 20,000nT to 120,000 nT

Low/High Field Options: 3000 to 350,000 nT

Gradient Tolerance: 50,000 nT/m

Sampling Rate: 1, 5, 10, 20, 100 (optional), 1000 (optional) Hz

VLF Perfomance

User selected station frequency range of 15.0 -40.8kHz (simultaneous measurements).

Vertical in-phase and out-of-phase (quadrature) components as % of total field.

2 components of horizontal field amplitude and total field strength in pT.

0.1% of total field (VLF fields >5 pT)

Summary

MagVLF sets a new standard for UAV-based geophysics—combining the power of two proven technologies in one streamlined system. For detailed technical specifications please check the brochure and for all other questions please send us an email or request a quote. 

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