by the radiated signal, the metallic line behaves like a
large antenna, retransmitting the signal through the
ground and air in a pattern that corresponds to its path.
The line carries the signal on its path for several hundred
yards, depending on its depth, the mineralization and
conductivity of the ground, and the transmitter power set-
ting. To use inductive energizing, follow these steps:
i) Make sure that
the DCC is
removed from the
direct-output jack
on the transmitter.
If it is not, the
transmitter is in
conductive mode
and will not radiate
a signal through
the air.
ii) Turn on the transmitter. You have activated the transmit-
ter if the green BATT light is glowing. If you have
depressed the POWER button and the light does not
glow, you probably need to change the batteries.
iii) Select a power setting on the control panel of the
transmitter. Using the OUTPUT LEVEL switch, select
either low or high output power. High output is indicat-
ed when the HI light is glowing. At this time, you may
also want to set the PULSE switch. If the BATT light
blinks, the energizing signal will pulse as well. Such a
signal is often easier to identify while tracing.
Model 902 Pipe & Cable Locator
11
