Replacement Part List

that goes through the Crossing Nulls. Walk from the center out to the

maximum range of the transmitter, with the sensitivity all the way up in the

“far” position. When in doubt, walk further away. Hold the receiver level

straight in front of you, at waist height, heading toward the Peak Spot, and

increase the sensitivity until you have a signal around center scale on the

meter.

Bend down so that the receiver is close to and parallel to the ground, and

walk slowly toward the Peak Spot along the line between the Crossing Nulls.

Adjust the sensitivity as you go so that the meter stays around center scale

(switch between “Far” and “Near” positions as needed). At some point before

you reach the Peak Spot, you will notice a sudden signal drop-off. This is

called the “Front Null”, and you should mark it carefully. Confirm it by

backing up a few feet and approaching the spot again.