Nagovitsyn Engineering undertakes repair, modernization and production of location equipment for horizontal directional drilling: transmitters, location receivers and remote displays.Using our "know-how" we can extend operation time of the transmitter from one set of batteries, if necessary, increase the power of the transmitter in the process of renovation and transform single frequency FX series transmitters into dual-frequency transmitters.We provide our Customers with remote assistance: our consultations often allow to determine what exactly happened with location equipment. Sometimes there is no need to repair the transmitter, location receiver or the remote display you just need to carefully check and adjust equipment to eliminate interference.We also sell upgraded transmitters, batteries and storage cells. Nagovitsyn Engineering technical solutions to improve transmitters properties are covered by patents and registered applications for inventions. Our experience is reflected in publications in specialized magazines and reports at international conferences.