The navigation system is included into the tank control system and serves to automate the fulfilment of interaction between tanks within a tank unit in order to command its manoeuvres. Installation of the LIO-N system in the tank ensures the following:

• determining the tank's own coordinates with the help of two satellite systems: GPS NAVSTAR (USA) and GLONASS (Russia);
• collecting (with the help of the standard radio set) information about the location of the subordinate tanks and displaying this information on the screen;
• generating, transmitting, receiving and displaying the text information (the information is input with the help of a keyboard and is transmitted through a digital radio channel by using the standard radio set);
• storing and processing the pre-determined routes;
• providing the driver with information about the movement direction required in order to reach the next route check-point.

Technical characteristics:

• accuracy (standard deviation) of determining the tank location coordinates when using the systems:
• NAVSTAR - 40 m;
• GLONASS - 30 m;
• NAVSTAR/GLONASS - 20 m;
• number of routes that can be pre-determined - up to 10;
• number of check-points in each routes - up to 50;
• collection of information about the location of subordinate tanks, transmission of the coordinates of destination points and text information are ensured in military units up to tank battalion level inclusively;
• time of transmission and reception of information in the digital radio channel and the communications coverage distance are determined by the characteristics of the standard communications means (for R-173M radio set - within 1 sec at distances of up to 20 km);
• accuracy of presenting the current time (with allowance for the time zone) - 1 sec;
• readiness time:
• at 'cold' start - within 180 sec;
• at 'hot' start - within 15 sec;
• built-in test systems are available.

LIO-N Navigation System