L&M Survey Services invested in two techniques for locating utility services: Radio Frequency Location (RFL) and Ground Penetrating Radar (GPR), both of which use the most up-to-date instruments available in this sector, namely RD4000 for RFL and Easy Locator for GPR (see Specialist Equipment).
Using topographic survey techniques, we provide our clients with mapped information which clearly and easily identifies the location of underground pipes and cables, allowing for a safer working environment and ultimately proving to be cost effective.
RD4000 System – Radio Frequency Location
The RD4000 is the world’s first web-enabled cable and pipe location system. Together with the T10 web-enabled transmitter, this system is exact and precise in its search for both power and radio signals in locating underground services.
It uses transmitter clamps for safe signal application to live cables; receiver clamps for cable identification in duct; flexrods for pushing sondes down non-metallic and cast iron pipes; a range of Sonde transmitters for locating non-conductive pipe and cast-iron duct structures; and stethoscopes for identifying cables in congested areas.
Easy Locator – Ground Penetrating Radar
This entry level GPR system identifies the presence of both metallic and non-metallic buried utility infrastructure. It’s the only technology available that does not require a physical connection to the utility, and does not rely on radiating EM fields that may or may not be present or detectable.