User's Manual

®
Vermeer
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DigiTrak
®
L
T
™
Operator’s Manual 23
Transmitter
Types of LT Transmitters
The LT transmitter fits inside the drill housing and transmits information regarding the drill head location,
position, and heading. The transmitter emits electromagnetic signals at a frequency of 12 kHz that the
receiver “hears” and converts into the information shown on the receiver and remote display screens.
DCI manufactures two different battery-operated transmitters for use with the LT system—a long-range
transmitter (bright-green tube) and a short-range transmitter (brown tube). The long-range (LX) trans-
mitter provides a depth range of 33 ft (10.1 m). The LX transmitter is the size of a standard transmitter—
15 in. (38 cm) long and 1.25 in. (32 mm) in diameter. It is powered by two C-cell alkaline batteries.
Long-Range LX Transmitter
The short-range (LS) transmitter provides a depth range of approximately 15 ft (4.6 m). The LS trans-
mitter is 8.0 in. (20 cm) long and 1.0 in. (25 mm) in diameter. DCI offers an adapter for this transmitter to
fit in a standard-sized housing. The outer dimensions of the adapter with the LS transmitter inside are
exactly the same as those of a standard transmitter (15 in. x 1.25 in. [38 cm x 32 mm]). It is powered by
one AA alkaline battery.
Short-Range LS Transmitter
NOTE: The range of any transmitter with any DCI receiver is dependent upon the amount of inter-
ference at a job site. The range decreases as interference increases.
An index slot at the front end assists in properly aligning the transmitter in the housing. The slot should be
at the 12 o’clock position (with the slot at the top), and the tapered or flattened surface of the drill head
should be indexed to this position.