EVERYTHING YOU NEED TO KNOW TO GET STARTED WITH THE STEM FAMILY
sTEM
sTEM Step-by-step
These videos cover everything you need to know to get started with your sTEM system, from its core components and battery setup to the three available coil configurations (20×20, 40×40, and 80×80).
sTEM Product Overview
sTEM Overview. This video walks through the core components of the sTEM (stationary TEM) system: the sTEM unit, battery charging suitcase, and batteries. The presenter shows how to check battery charge levels, use the charging suitcase, and insert two batteries into the unit’s transmitter and receiver slots. After powering on, LED indicators confirm the status of the transmitter, receiver, and GPS.
sTEM Configurations
sTEM Configurations. This video presents the different coil configuration options available for the sTEM system. It covers three setups: the lightweight 20x20m transmitter with a 3x3m receiver, the mid-range 40x40m transmitter with a 3x3m receiver, and the deep-survey 80x80m transmitter (split across four drums) with a 5x5m receiver. Each configuration uses a lead-in cable to connect the receiver coil to the sTEM unit.
sTEM Setup
sTEM Setup. This video demonstrates how to deploy the lightweight 20×20 sTEM system in the field. It walks through rolling out the transmitter cable into a square with double black markers at each corner, placing the receiver coil at the center with double yellow markers, and connecting the lead-in cable. The presenter also shows the 80×80 configuration layout, which uses four interconnected drums and a separate lead-in cable to the sTEM unit.
Profiler & Profiler Compact Unboxing
sTEM Profiler & Profiler Compact Unboxing. This video introduces the sTEM Profiler system, designed for faster deployment on large-scale projects, and unboxes both the standard Profiler and Profiler Compact suitcases. Each suitcase contains color-marked rig centers, handles, fiberglass tubes, and transmitter and receiver coils. The presenter identifies all components, including assembly guides and the clips used to construct the portable rig frames.
Profiler & Profiler Compact Assembly
sTEM Profiler & Profiler Compact Assembly. This video demonstrates how to assemble the Profiler Compact and Profiler rigs step by step. It covers positioning the cross center, inserting fiberglass tubes, securing everything with color-coded handles, and placing the coil onto the completed rig. Once two rigs are built (one transmitter, one receiver), the presenter shows how to connect them to the sTEM unit using banana plugs and the receiver connector, then walk the rigs out to their survey positions.
Quick answers to common questions
Why doesn't the sTEM Wi-Fi network show up on my phone or tablet?
After powering on, the unit needs a couple of minutes for its Wi-Fi network to become visible. Confirm that all units are powered on, that Wi-Fi is enabled on your mobile device, and that you refresh the network list. If it’s still not appearing, move closer to the unit or restart it via the power button.
What does the GPS lock indicator mean, and what if it stays off?
The third LED on the sTEM unit blinks when it has a GPS lock. Acquiring a GPS lock can take a few minutes after powering on. Ensure that the case with the GPS antenna at the top is positioned upward and has a clear view of the sky. If GPS is still unavailable, the system will use your mobile device’s GPS location instead, or you can add the position manually later.
My LM/HM current readings are unstable or outside the green zone. What should I do?
Stop the measurement and check the following:
- The Tx coil connection to the sTEM unit is clean and securely connected.
- The battery charge level is sufficient (replace batteries if necessary).
- For the 80 × 80 m Tx coil configuration, verify that all corner connections between the cable drums are secure.
How close can I survey to power lines, fences, or other infrastructure?
Nearby man-made conductive objects can couple with the transmitted electromagnetic field and distort the measured data.
The magnitude of the coupling depends primarily on:
a) The size and geometry of the conductive object.
b) The distance between the transmitter/receiver and the conductive object.
As a general rule:
Compact coil configurations → shorter safety distances.
Larger transmitter loops → longer safety distances.
Conductive ground (strong signal) → shorter safety distances.
Resistive ground (weak signal) → longer safety distances.
Because coupling effects depend on many factors, it is impossible to define an exact safety distance.
The following values should therefore only be used as a rule of thumb (measured from the closest side of the transmitter coil):
sTEM unit with central loop configuration: approximately 100-200 m
sTEM Profiler: approximately 25–50 m
How can TEMcompany remotely access my sTEM unit?
Use the TEM2 Go
Why isn't my real-time inversion model showing up?
A grey model bar indicates that the inversion is running, but the data quality is insufficient, or there are not enough valid data points to generate a model.
A completely blank window usually indicates that the inversion function is not active.
A completely blank window usually indicates that the inversion function is not active.
First, verify that:
- Real-time inversion is enabled in the Settings menu.
- Your Premium Features License is active (visible under About).
If both are active and the issue persists, please contact support@temcompany.com for further troubleshooting.
Can TEMcompany access the data on my instruments?
No, TEMcompany cannot access any data on your instruments without you giving us explicit permission to do so.
Still have questions?
Need more help? If you have a technical issue, a product-related question, or need clarification, just contact our Support team.
Contact Support
