Digitrex 3-3000-00a-F Locating the Transmitter from the Front, Method for Confirming Position

® Locating

Locating the Transmitter from the Front

The transmitter’s three locations can be determined in a similar manner as described above starting in front of the transmitter while facing the drill.

Start at a location well ahead of the transmitter and hold in the trigger while facing the drill. A “+” sign should appear in the top left window (along with the signal strength). Walking toward the transmitter, the “+” sign will change to a “–” sign at the FNLP. Continue walking toward the transmitter and the “–” sign will change to a “+” sign at the PLL. Continue walking toward the drill and the “+” sign will change to a “–” sign at the RNLP.

Surface of	PLL
Ground

Drill

FNLP

RNLP

Transmitter

Locating the Transmitter from the Front

Method for Confirming Position

There is a simple method to determine whether the receiver is positioned above the FNLP, RNLP, or transmitter. Rotate the receiver around the “plumb line” axis of the receiver with the trigger held in (see “Using Depth Antenna Plumb Line to Mark Locate Points” in the Receiver Section). If the receiver is above the FNLP or RNLP, the signal strength will remain the same. If it is being rotated above the transmitter, the signal strength will vary by approximately 50%.

Observe	Rotate Around
Signal	Axis Point
Strength	(Plumb Line Is
With	Perpendicular
Trigger	to Page at
In	this Point)
+	653
	~ I27

When Receiver is rotated about axis at FNLP or RNLP with trigger held in, signal should remain constant.

Method for Confirming Position

DigiTrak® Mark III Operator’s Manual 49