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4.3 Transmitter – Inductive Method
If you cannot make a direct Connection onto the conductor, or use the Metroclamp, use the internal antenna of the
Transmitter to induce signal onto the conductor. See Figure 4-3.
Figure 4-3: 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). Align the
CONDUCTOR DIRECTION arrow with the conductor. (See Figure 4-4).
2 Pull the POWER SWITCH “ON”.
3 Trace the signal with the Receiver as described I the following section. To determine if you are air
coupling, raise the Receiver above the target conductor. If the signal does not
decrease, you are air
coupling. Move further away from the Transmitter.
Figure 4-4: Position of Transmitter for Inductive Use.
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