The official task of GLONASS - observations on vehicles - is to improve travel patterns and reduce fuel costs. In addition, such monitoring allows the detection of fuel drains and associated violations. The response of the drivers was attempts to find the answer to the question of how to deceive GLONASS - the domestic analogue of the global GPS system.
According to experts, the only guaranteed way to cheat GPS is to use an electronic device that suppresses radio signals (when the effect is remote). Sometimes a person needs to not be followed, but the phone worked. When the suppression unit is activated, this is not possible.
In the case of truckers, such a lock makes it impossible to transmit data to the control room. The machine temporarily disappears from the connection. However, after the “jammer” is turned off, the trip data from the device’s memory will be “transferred” to the control server.
In a completely different way, the picture is constructed with the suppression of GPS signals. In this case, indicators with coordinates are not fixed in memory. After all, there are no satellite signals for their formation. This method is possible with the simplest device - a GPS tracker. As a result, a situation arises in which the car, leaving the garage, mysteriously disappears from the monitor screen, and then (just as mysteriously!) Appears again. To identify such a trick, you need to ride next to the driver during the day. In addition, if the system is mounted in a car more complicated than a simple tracker, this will not help solve the problem of how to trick GLONASS .

You can damage the GLONASS antenna by cutting the cable or piercing the insulation with a needle. The antenna can be shielded by metal, wrapped in foil or a metal sheet, to disrupt the signal reception by a magnet. You can try to disconnect the terminal power in the car from the onboard power supply, fill it with water, send a stun gun discharge, ground the metal case of the terminal, get into its microcircuit. You can remove or damage the SIM card to break the signal. But such damage is a solution “for once.” In most cases, they are easy to identify, which is fraught with the application of sanctions.
Generally speaking, all the ways to deceive GLONASS are good if they are aimed at inexperienced company managers. Even if you decide to use a device that simultaneously blocks absolutely all the GLONASS and GPS frequencies, people with experience will quickly “understand” anyone. The GLONASS system itself works flawlessly. Signal wires transmit data about the ignition, tachometer (engine speed), fuel system. The GPS autoscan connected to the speedometer provides a reliable illustration of the mileage for the controller. Terminals can pick up signals without an antenna. The terminal body of the machine is sealed and any introduction is detected.
Judging by the reviews of third-party analysts, the success of using methods of how to cheat GLONASS depends on the mutual interest of the main categories of workers. The collusion of drivers, garages and dispatchers theoretically allows for the development of such fuel theft schemes where workers will be represented by victims undeservedly accused due to the constantly misleading GLONASS.
There is an extreme way to get around GLONASS - for drivers with the highest level of skill. This is a ride on a completely de-energized car, where not a single electric device works. Essentially a stunt trick. During movement, you need to turn off the "mass" of the car. In this case, the diesel engine will continue to work, and the car will be completely de-energized (together with the navigation unit). If there is a battery inside, then the device will register the coordinates of movement along the route. But if there is no battery, the system will highlight the “flight” from one point to another. It is worth considering that many terminals are equipped with their own batteries and can record the movement that has passed during the time that has elapsed since the blackout.
Unattainable at the moment for a simple person, but theoretically possible "weapon" for how to trick GLONASS-GPS, is the technology used by the military in relation to unmanned aircraft. With its use, GPS signals are suppressed. Fake ones are passed instead. As a result, the drone lands on an enemy airfield. Thus, there is already a technology for replacing a signal from a satellite to a local one.
So, the GLONASS deception, in fact, is unrealistic, but possible. It is important not to forget about the main thing: orbiting satellites continue to emit pulses with "iron" synchronization. The receivers "catch" these pulses and calculate the coordinates. If you contrive so that the receiver will transmit anomalous coordinates, then you can deceive, first of all, yourself.