The Subsite Electronics TK Series HDD guidance system provides the performance, ease of use and versatility required to give directional drilling contractors confidence that they can get the job done, even in high-interference areas. The TK Tracker Series features dual locating methods (peak and null), a four-frequency beacon, a depth range of up to 110 feet (33.5 meters) and a tracker-to-rig range of up to 2,000 feet (610 meters). The TKQ System features an industry-exclusive, four-frequency beacon that provides superior performance in high signal interference environments. The advanced TKQ Bore Path Analyzer automatically recommends the two best beacon frequencies to use for each jobsite, to ensure a more efficient bore and longer battery life. Time-saving Drill-To mode  enables the drill operator to make real-time corrections to improve bore accuracy or avoid obstacles, based on walkover information obtained by placing the tracker ahead of the downhole tool and along the intended bore path. TSR bore-logging software provides "as built" record of completed bore path.