  In March of 2018, after the completion of the Physics Run 2, an upgrade has
been installed at an innovative detector system Horizon-T, with the upgraded
version now called Horizon-10T. It was constructed to study Extensive Air
Showers (EAS) in the energy range above 10^16 eV coming from a wide range of
zenith angles (0 - 85 degrees). The system is located at Tien Shan
high-altitude Science Station of Lebedev Physical Institute of the Russian
Academy of Sciences at approximately 3340 meters above the sea level. After
this upgrade, the detector consists of ten charged particle detection points
separated by the distance up to 1.3 kilometer as well as optical detector to
view the Vavilov-Cherenkov light from the EAS. Each detector connects to the
Data Acquisition system via cables. The calibration of the time delay for each
cable including newly installed ones and the signal attenuation is provided in
this article as well as the description of the newly installed detection points
and their MIP response values.

Instrumentation and Detectors;High Energy Physics - Experiment