User's Manual

System Setup
DigiTrak
®
F5™ Operator’s Manual 57
Roll/Pitch Check
At the end of the bore path, turn the receiver to face toward the launch end, and install batteries in the
transmitter to power it up. Have a coworker hold the transmitter and stand a distance to your side
approximately 1.5 times the maximum depth of your intended bore. Walk together in parallel back toward
the launch end keeping the separation distance constant. Periodically stop and have your coworker
change the transmitter’s pitch and roll orientation so that you can verify the speed and accuracy of these
readings on the receiver. Note any locations where the display information becomes erratic or
disappears.
LL
Two-Person Roll/Pitch Test with Transmitter
NOTE: Electrical interference is determined by observing the signal strength with the transmitter
turned on and then with the transmitter turned off. If the difference between these numbers is
less than 150, the electrical interference is excessive.
Suggestions for Dealing with Interference
If the pitch/roll information becomes erratic or is lost, move the receiver away from the interference source
while staying within range of the transmitter. Separation (use of the HAG function) of the receiver from
both passive and active interference is known to reduce or eliminate interference-related problems.
Another option is to use a transmitter with a different frequency or greater depth range. A transmitter with
greater depth range has more power to overcome interference. A different frequency transmitter may
have less interference potential on a given jobsite. To determine which transmitter is the best option,
perform a background check using different transmitters and frequencies to see which provides the best
signal for overcoming interference.
Intended Bore Path
1.5X Depth
Red Flag Area