27
Tracing – general
Basic principle
There are two tracing methods - active and passive:
• Active method
A defined frequency is generated and fed into the cable using an audio frequency
transmitter. This signal generates an electromagnetic field that can be located at
the surface of the ground and tracked. This method permits very precise determi-
nation of the position and depth of the cable route.
• Passive method
The mains or radio frequency in a cable generates an electromagnetic field that can
be located at the surface of the ground and tracked. Disturbances, e.g. from other
cables and pipes, must be taken into account if this method is used.
Tip: for clear signal detection, use the active tracing method.
Required equipment
• Audio frequency transmitter (e.g. BAUR TG)
• CU control unit, AGP acoustic ground probe, Bluetooth® headphones
• Markers for the route
User interface
protrac® pin-pointing system822-186-4
To Next Page
Loading...
Need help?
General
