Cable Locators

This is "capacitive coupling." High-frequency signals jump from the target line to nearby utilities. Calibration verifies the transmitter’s frequency output and the receiver’s ability to filter these ghost signals, ensuring your "peak" and "null" modes correctly isolate the intended utility.

Yes. As voltage drops, signal strength weakens, causing the receiver to miscalculate the electromagnetic field depth. We test the transmitter’s output wattage under load to ensure it provides a consistent, strong signal that doesn't "lie" about how deep a high-voltage cable is buried.

In dry Australian soil, poor grounding limits current flow. During service, we verify the "Impedance Matching" circuit of your Genny. This ensures the device can push enough signal into high-resistance earth to make deep-buried pipes detectable without overwhelming the receiver with surface noise.

Cable locators use two antennas to calculate depth based on the field gradient. If these antennas drift out of sync, your depth reading will be skewed. We calibrate the differential balance between the sensors to ensure your "depth-to-utility" measurement is accurate to within millimeters.

It doesn't change the calibration, but it masks the signal. We test the "Dynamic Overload Protection" (DOP) of your receiver. This ensures the device can "clip" the noise from overhead 132kV lines while still pinpointing the subtle 33kHz signal from a buried data conduit.

For locators with internal compasses (to show line direction), magnetic interference can cause internal sensors to "stick." We verify the directional response against a known magnetic north to ensure the display accurately reflects the orientation of the buried utility.