80 MHz
Deepest reachGX80 HDR
Geology, bathymetry, bedrock, larger cavities and deeper layer detection.
- SNR
- 114 dB
- Time window
- 3100 ns
- Weight
- 24.2 kg
Modular HDR GPR · 4 Antenna Choices
MALÅ Ground Explorer GX
A rugged, integrated GPR platform for teams that need to match each survey to the right depth, resolution and field setup. Choose GX80, GX160, GX450 or GX750, then run the same MALÅ Controller App and MALÅ Vision workflow.
Simple ruleLower frequency for deeper, larger targets. Higher frequency for sharper shallow detail.
80deepest
160deep
450balanced
750detail
Antenna Selector
Choose The GX Antenna By What You Need To See.
The Ground Explorer family uses four HDR antennas. All share the same platform logic, but each frequency changes the balance between penetration depth and near-surface resolution.
160 MHz
Deep survey balanceGX160 HDR
Geotechnical, environmental, deeper utilities and broader subsurface profiling.
- SNR
- 107 dB
- Time window
- 625 ns
- Weight
- 10.7 kg
450 MHz
Everyday balanceGX450 HDR
Infrastructure, utilities, archaeology and mixed-resolution site investigation.
- SNR
- 101 dB
- Time window
- 300 ns
- Weight
- 5.7 kg
750 MHz
Highest shallow detailGX750 HDR
Shallow utilities, pavement, concrete-style detail and fine near-surface targets.
- SNR
- 97 dB
- Time window
- 75 ns
- Weight
- 3.6 kg
Need More Depth?
Start with GX80 or GX160. Lower frequencies trade fine shallow detail for stronger penetration and larger-target coverage.
Need More Detail?
Start with GX450 or GX750. Higher frequencies are better for shallow services, pavement layers and smaller near-surface targets.
Need Faster Field Setup?
GX antennas are app-enabled and support WiFi data collection, with a typical working range of 25-100 m depending on site conditions.
System Configuration
One Platform, Multiple Field Setups.
Every GX solution combines a GX antenna with the GX Controller or an app-based tablet workflow. It can be configured as a push solution on a rough terrain cart, or as a pull solution with an encoder wheel and harness.
Pick The Antenna
Choose one of four HDR antennas based on the target depth, required resolution and expected survey conditions.
Choose Push Or Pull
Use the Rough Terrain Cart or RTC Mini as a push setup, or use the pulling kit and encoder for forested and uneven terrain.
Collect And Process
Acquire with the GX Controller or MALÅ Controller App, then process and share data through MALÅ Vision.
Field Kit
Build Around The Controller Workflow You Prefer.
GX Controller
Field display and wired control option for rugged outdoor acquisition.
Controller App Tablet
Wireless acquisition workflow on recommended Android tablets.
Battery System
Interchangeable antenna battery setup for practical field runtime.
Application Fit
Where Ground Explorer GX Fits Best.
GX is a practical choice when the same team needs one GPR platform across infrastructure, geology, environmental and public-safety work instead of buying a single fixed-frequency instrument.
- Utility locating and mapping
- Road and bridge assessment
- Bedrock and layer detection
- Archaeology and cultural heritage
- Sinkholes, cavities and voids
- Bathymetry and bottom profiling
- Landfill and environmental studies
- Military, police and UXO-style work
Technical Details
Compare The Core Specification Before You Configure.
| Model | Frequency | Time window | Dimensions | Weight |
|---|---|---|---|---|
| GX80 HDR | 80 MHz | 3100 ns | 1010 x 780 x 220 mm | 24.2 kg |
| GX160 HDR | 160 MHz | 625 ns | 720 x 480 x 190 mm | 10.7 kg |
| GX450 HDR | 450 MHz | 300 ns | 430 x 360 x 180 mm | 5.7 kg |
| GX750 HDR | 750 MHz | 75 ns | 375 x 235 x 170 mm | 3.6 kg |
| Technology | MALÅ HDR real-time sampling |
| Antenna choices | GX80, GX160, GX450 and GX750 |
| Bandwidth | 120% fractional, -10 dB |
| Acquisition modes | Encoder wheel, time, manual or MALÅ Motion Trig |
| Positioning | RTK GNSS option, GPS time sync, DGNSS, mobile device positioning, encoder and total station support |
| Antenna runtime | Up to 6 hours |
| Antenna power | Interchangeable 12 V Li-Ion battery or external 12 V DC source |
| Environmental rating | IP65, -20 C to +50 C |
| Controller runtime | 8-10 hours |
| Controller display | 1024 x 768 field display |
| Controller comms | Ethernet, optional WiFi, USB 3.0 and RS232 |
| Software | MALÅ Controller App and MALÅ Vision |
Resources
Documents And Reference Guides.
MALÅ Ground Explorer BrochureSystem overview, push/pull configurations and Controller App workflow.PreviewMALÅ GX Technical SpecificationAntenna, controller, runtime, positioning and environmental specifications.PreviewMALÅ Ground Explorer GX Quick GuideFast field reference for setting up and running the GX system.PreviewMALÅ GX Antennas — WiFi & Wire GuideConnecting and configuring GX antennas over WiFi and wired links.PreviewMALÅ RoadCart User GuideSetup and operation of the RoadCart survey cart.Preview
Recommended Kit
Accessories & Antennas For The GX
Extend the Ground Explorer GX with the batteries, antennas, cart, controller app and MALÅ Vision software it's built to work with.
MALA
Li-ion Battery Pack 12 V
Li-Ion battery pack 12V suitable for MALA GPR system.
View accessory
MALA
GX Antenna Li-Ion battery
MALA Li-Ion Rechargeable battery pack for Ground Explorer (GX) GPR, give user the extra power and longer performance.
View accessory
MALA
GX Li-ion battery charger
GX Li-Ion battery charger suitable for MALA Ground Explorer GPR system
View accessory
MALÅ
Rough Terrain Antenna (RTA)
MALÅ Rough Terrain Antenna (RTA) low-frequency Ground Penetrating Radar (GPR) surveying, a unique in-line, all-in-one, antenna.
View accessory
MALA
MALÅ Rough Terrain Cart (RTC)
Now with our new MALÅ RTC Mini is a smaller and lighter version of the well-known MALÅ Rough Terrain Cart (RTC)
View accessory
MALA
MALÅ Controller App
MALÅ Controller App makes measurements easier, faster and more cost-efficient. Integrated positioning with Bluetooth.
View accessory
MALA
MALA Vision Software
An easy to use cloud-based GPR analysis software to help you go as fast as possible from data collection to delivering results.
View accessory
MALA
MALA Easy Locator HDR WideRange
MALA Easy Locator HDR WideRange, widest GPR antenna bandwidth available. Specially developed for efficient utility detection.
MALA
MALA Easy Locator Core
MALA Easy Locator Core – a portable GPR with advanced AI capabilities for high-accuracy underground utility detection. Easy to carry, precise, and efficient for any fieldwork
MALA
MALÅ GeoDrone 80
MALÅ GeoDrone 80 is the cutting-edge solution for unmanned surveying in areas that are dangerous or are hard to reach.
MALA
MALA MIRA COMPACT
Discover the MALA Mira Compact GPR for 3D underground utility mapping, sinkhole detection, and void identification. Ideal for infrastructure safety and utility mapping
MALA
MALA MIRA HDR 3D GPR
MALÅ redesigned MIRA HDR 3D GPR technology, giving you the best possible data quality, resolution and depth range.
MALA
MALÅ Professional Explorer (ProEx)
MALÅ ProEx GPR offers a flexible and versatile approach to detecting subsurface targets and geological layers
Configure Ground Explorer GX
Tell Us The Target, Depth And Terrain.
RD-Palmer can help choose the right GX antenna, controller workflow, cart or pulling kit, positioning option, training and local service support.