Subsite Marksman



The Subsite® Marksman HDD Guidance System provides superior performance in high-interference environments with the industry’s widest range of frequencies in a single beacon. It scans the most usable frequencies, selecting the best choice to avoid interference. Its increased beacon power signal improves performance at extended depths and dual-power-mode provides consistent performance across more housing sizes. Marksman is easy to use with your choice of user interface—Classic View or the new Marksman View featuring intuitive graphics and clear data—and a simple single toggle control (no extra buttons or triggers) so you’re more productive from day one.



Dimensions12.5 x 7.0 x 29.1 in. (317.5 x 177.8 x 739.1 mm)
Weight (with battery)7 lbs (3.2 kg)
Operating temperature-4 to 140°F (-20 to 60°C)
Environmental ratingIP65
Power sourceLi Ion (Inspired Energy NF2047QE34)
Battery lifeUp to 16 hours
DisplayTFT-LCD 5 in. WVGA (800 x 480 x RGB)
Audio outputSpeaker
Telemetry range2000 ft (610 m)
Telemetry channels5-12
Accuracy+/- 5% over testable range


Receiving frequencies32
Frequency range1.9 to 46 kHz
Depth with normal power beacon100 ft (30.5 m)
Depth with high power beacon130 ft (39.6 m)
Battery Life Range (normal power)70 hrs
Battery Life Range (high power)30 hrs
Depth range numbers are based on SAE Standard J2520, and are dependent on battery type, frequency and housing type.
Operating temperature-4 to 140°F (-20 – 60°C)
Environmental ratingIP66
Power SourcePowered off the HDD unit power
DisplayHi-resolution graphic
Telemetry Range2000 ft (610 m)*
Telemetry Channels8-12


Dimensions10 x 3.7 x 6.1 in. (254 x 94 x 155 mm)


Dimensions7 x 7 x 6.5 in. (177.8 x 177.8 x 165.1 mm)

Key Features

Superior performance in high-noise environments with the industry’s widest range of frequencies in a single beacon.
Scans the most-usable frequencies, selecting the best choice to avoid interference.
Stronger communication between tracker and beacon at extended depths (130+ feet) for more productive bores.
Intuitive user interfaces for ease of use; choose Classic View or the new Marksman View.

Advanced locating methods let you use your preferred method of locating.

  • Walkover Mode: Lets you pinpoint drill-head location with peak and null techniques
  • Drill-To Mode: Extended range enables the drill operator to make real-time corrections further out, improving bore accuracy
Extended Range Mode extends data range and provides stronger depth readings.
Single toggle control, no extra buttons or triggers to get in the way.
0.1% pitch resolution for precision grade work.
Dual power-mode beacon allows consistent performance across housing sizes.
Integrated GPS standard (not an add-on) plus Bluetooth® compatibility with your preferred GPS device.
Fast calibration, with automatic beacon-to-tracker connection, saves time and improves productivity.
2,000-foot range between the tracker and drill operator for more productivity.

Beginning on September 28th, every JESCO location will return to full service.


     1.  Each branch Parts Department is open for customers with limited indoor capacity.  Capacity for each branch is clearly marked on signage at the entrance.


     1.  Contactless Pick Up Procedures are determined by order weight:
          –    If determined to be carriable, your parts order will be filled and placed on in-store shelving marked Parts Order Pick Up.
          –    If your order is determined to weigh more than deemed carriable. your parts will be placed on an outdoor table at the back of the location for pick up.

     2. Credit card terminals are now accessible to customers outside of parts desk partitions. Your parts representative will advise you of the terminal location and procedure.


     1. Signage is posted in each location with directions for our rental and service customers.


     1.  We are maintaining limited capacity in every location.
     2.  All customers are required to wear masks within every JESCO facility.
     3.  Indoor restrooms are for employee use only. Portable restrooms continue to be available outside each location for our customers.
     4.  Customers need to maintain 6 ft. social distancing within every JESCO location.  

JESCO would like to thank our loyal customers in advance for your patience, attention and adherence to these policies as we continue to prioritize your safety as we open our branch locations back up for business.

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