5 Operation
Inductive Coupling with the signal clamp
5.3 Transmitter – Inductive Method
If you cannot make a direct connection onto the conductor, or use the signal clamp,
use the internal antenna of the Transmitter to induce signal onto the conductor. See
graphic below.
Signal Field Generated by Transmitter when in Inductive Use
This is the least preferred method of inducing signal onto a conductor because
the signal is broadcast through the soil and the air and can be picked up by other
conductors in the area. In this mode the signal radiates from an antenna inside the
bottom of the transmitter housing and couples to the conductor by electromagnetic
induction.
1. Position the transmitter over the target conductor at a place that is at least 30ft.
away from where you will be searching with the receiver. (If the transmitter is very
close to the receiver, more signals may reach the receiver by air coupling than by
coupling through the conductor). Place the transmitter across the buried conductor
as shown below.
2. Switch on the transmitter.
3. Trace the signal with the receiver as described in the following section. To
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