D
IGITAL
C
ONTROL
I
NCORPORATED
8
DigiTrak
®
F5
®
SST
®
Operator’s Manual
Interference
Interference can cause inaccuracies in the measurement of depth and loss of the transmitter’s pitch, roll,
or heading. Always perform a background n up to 6561 ft. (2000 m).oise check prior to drilling.
Sources of interference include, but are not limited to, traffic signal loops, invisible dog fences, cable
TV, power lines, fiber-trace lines, metal structures, cathodic protection, telephone lines, cell phones,
transmission towers, conductive earth, salt, salt water, rebar, and radio frequencies.
Interference at the remote display may also occur from other sources operating nearby on the same
frequency, such as car rental agencies using their remote check-in modules or other directional
drilling locating equipment.
Background noise must be minimal and signal strength must be at least 150 points above the
background noise during all locating operations.
Because this equipment may generate, use, and radiate radio frequency energy, there is no
guarantee that interference will not occur at a particular location. If this equipment does interfere with
radio or television reception, which can be determined by powering the equipment off and on, try to
correct the interference using one or more of the following measures:
o
Reorient or relocate the receiving antenna.
o
Increase the separation between the receiver and affected equipment.
o
Consult the dealer, DCI, or an experienced radio/TV technician for help.
o
Connect the DCI equipment to an outlet on a different circuit.
