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Modular GPR Control Unit · 30 MHz – 2.3 GHz

MALÅ Professional Explorer (ProEx)

One control unit for the entire MALÅ antenna library. The ProEx pairs with the rugged MALÅ XV Monitor to run single, dual or full multi-channel surveys — the most versatile GPR platform for the professional user, across utilities, concrete, geology and the environment.

The ideaKeep one control unit. Change antennas and modules to match every survey, from deep geology to concrete NDT.
MALÅ Professional Explorer (ProEx) - GPR for multiple applications
2modules
8antennas
31pairs max
IP65field-ready

Fully Modular

The most versatile control unit in the MALÅ range and successor to the famous RAMAC/GPR CU II. One unit covers 30 MHz to 2.3 GHz — swap Optical and HF modules instead of buying a new system for each job.

Single To Multi-Channel

Collect simultaneously from two antenna pairs as standard. Add ProEx Expansion Units for up to 8 antennas, or the MIRA extension for 31 antenna pairs.

Built For The Field

The MALÅ XV Monitor is IP65-rated with a sunlight-readable trans-reflective screen and a simple dual-function button, running a nominal 5 hours per battery.

Antenna Families

One Control Unit, The Whole MALÅ Antenna Range.

Because the ProEx drives every MALÅ antenna, you match the antenna to the job rather than the instrument. Lower frequencies reach deeper for geology; higher frequencies give sharper detail for concrete and shallow work.

30 – 100 MHz

Rough Terrain (RTA)

Deepest reach

Geology, bedrock, groundwater and large-scale mapping over difficult, unprepared ground.

Module
Optical module
100 – 800 MHz

Shielded Antennas

Everyday workhorse

Utility detection and mapping, roads, environmental and general subsurface investigation.

Module
Optical module
from 100 MHz

Borehole Antennas

Downhole survey

Cross-hole and single-hole surveys for detailed profiling away from the surface.

Module
Optical module
1.2 – 2.3 GHz

High Frequency (HF)

Highest detail

Concrete NDT, civil engineering, rebar, shallow utilities and fine near-surface targets.

Module
HF module
Antenna Modules

Two Modules Unlock The Full Antenna Library.

A choice of antenna module tells the ProEx how to talk to your antenna. Fit the module you need and the same control unit handles everything from a 30 MHz rough-terrain antenna to a 2.3 GHz concrete antenna.

Optical Module

22-002602 · ProEX-Optical

Connects every MALÅ antenna with an optical interface — Shielded, Rough Terrain (RTA) and Borehole antennas.

  • Shielded 100 – 800 MHz
  • Rough Terrain 30 – 100 MHz
  • Borehole antennas

High Frequency Module

22-002603 · ProEX-HF

Connects the MALÅ High Frequency antennas, including versions with the EM depth-encoder option, for concrete and shallow high-resolution work.

  • HF 1.2 GHz
  • HF 1.6 GHz
  • HF 2.3 GHz
System Configuration

From Single Antenna To Full Array.

Every ProEx solution combines the control unit and XV Monitor with the antennas and module your survey needs. Start with one antenna and scale up to multi-channel arrays without changing the core system.

01

Pick The Module

Fit the Optical module for Shielded, RTA and Borehole antennas, or the HF module for the high-frequency concrete antennas.

02

Connect Your Antennas

Run a single antenna, a dual pair, or a full multi-antenna array — with cross-communication between antenna pairs when needed.

03

Acquire And Process

Collect in real time on the XV Monitor or a laptop with distance, time or manual triggering, then process and present the data in MALÅ software.

Application Fit

Whatever The Application, ProEx Can Assist.

Because the same control unit spans the full antenna range, ProEx suits teams that work across many survey types instead of buying a separate fixed-frequency instrument for each one.

Technical Details

Control Unit And XV Monitor Specifications.

ProEx Control Unit

Channels2 hardware channels (4 data) — up to 8 antennas, 31 pairs with MIRA extension
Antenna rangeAll MALÅ antennas, 30 MHz – 2.3 GHz
Antenna modulesOptical and High Frequency (HF)
Pulse repetition freq.100 / 200 kHz, not interleaved
Samples per trace2048 standard, 8192 extended
Stacks1 – 32,768 with auto-stacking
Sampling frequency0.2 – >400 GHz
Signal stability<70 ps
Acquisition modesDistance / time / manual
CommunicationEthernet, 100 Mbit/s
PowerLi-Ion 12 V battery, 5 h nominal
Size / weight32.5 × 22.2 × 4.2 cm · 1.9 kg
EnvironmentalIP65, -20 °C to +50 °C

MALÅ XV Monitor

DisplayColour TFT LCD, 640 × 480, trans-reflective (sunlight-readable)
AntennasFull MALÅ range, 30 MHz – 2.3 GHz
CommunicationEthernet, 100 Mb/s
PowerLi-Ion 12 V battery or external 9 – 18 V
Operating time5 h nominal (12 V battery)
Size / weight32.6 × 21.5 × 5.2 cm · 2.6 kg
EnvironmentalIP65, -20 °C to +50 °C
InterfaceSimple dual-function button navigation
Resources

Documents And Reference Guides.

Configure Professional Explorer

Tell Us The Antennas, Channels And Applications.

RD-Palmer can help specify the right ProEx modules, antennas, expansion units, carts and positioning, plus training and local service support in Malaysia.

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