User's Manual

DIGITAL CONTROL INCORPORATED

34 DigiTrak Falcon



Operator’s Manual

Depth Screen, Invalid Location

Hold the trigger at any time during locating to display the Depth screen. No depth or

predicted depth will appear if the receiver is not positioned at the locate line or front or

rear locate point. However, holding the trigger more than five seconds to enter Max

mode may obtain more stable roll/pitch data (use of Max mode has special

requirements and restrictions).

Max Mode

Page 31

As noted in the previous section, predicted depth can only be obtained with the receiver over

the front locate point.

Receiver Depth Screen with HAG Enabled

(not at FLP, RLP, or LL)

Interference

Interference can compromise a transmitter's signal even when drilling with an optimized

frequency band. It is important to the success of your bore that, after pairing your transmitter

at a newly optimized frequency, you check how the transmitter's signal will perform along the

intended bore path.

Warning To best overcome interference, find and deal with it above ground,

before you start drilling.

What is Interference?

Interference can reduce the transmitter’s range or cause variable readings and possibly result

in job slowdowns. Interference is classified as either active or passive.

Active interference, also known as electrical interference or background noise, can have

varying effects on locating equipment. Most electrical devices emit signals that can inhibit the

ability to locate the transmitter accurately or get good roll/pitch readings. Examples of active

interference include traffic signal loops, buried dog fences, cathodic protection, radio

communications, microwave towers, cable TV, fiber-trace lines, utility data transmissions,

security systems, power lines, and phone lines. Interference at the remote display may also

occur from other sources operating nearby on the same frequency. The following section

describes how to use the receiver to test for the presence of background noise.

Slanted line indicates

receiver is not at

FLP, RLP, or LL