Drone Jammers

UAV jammer are devices that operate at the same frequency as quadcopters and jam data transmission. But the matter is not limited only to this, they can completely turn off the control of the flying device, after which it either lands on the ground or is carried away by the wind in an unknown direction.

The drone jammer operates in the 2.4 GHz and 5.8 GHz bands at a distance of 200 to 1000 meters, depending on the terrain, the power of the device itself and the distance to the operator. The most common is the 2.4 GHz WI-FI frequency, but this channel is becoming more congested, so various interference began to appear. The latest technologies currently being developed allow access to the 5.8 GHz frequency. On this range, the channel is much wider and more efficient. A huge number of unauthorized devices transmit their information on this very frequency.

In order to activate the jammer of quadrocopters, you just need to turn it on, having previously connected it to the power source. It can turn out to be both a regular network and a car battery, because the mufflers have connectors for connecting to the cigarette lighter. Numerous tests have shown instantaneous disconnection of control and transmission of a signal from the UAV. Jamming devices are easy to use, as they have flexible configuration and an intuitive interface, do not require a dedicated server and integrate with many modern security systems.

But it is important to take into account that in the "stop drone" mode, absolutely all drones that have come under the range of the device are drowned out. Therefore, trying to neutralize the intruder, you can harm children playing with their toys.

Principle of UAV signal jammer

The main structure of the drone signal jammer is an integrated design of the three-band transmitter antenna, which can simultaneously generate the 2.4GHz/5.8GHz band UAV flight control interference signal and the satellite positioning interference signal, through the UAV's uplink flight control channel and The satellite positioning channel performs blocking interference, so that it loses flight control instructions and satellite positioning information, making it unable to fly normally. Depending on the design of the UAV, it will have the control effect of returning, landing and falling.

In the offensive and defensive situation, there is usually a certain distance between the drone operator and the sensitive area that needs to be fortified. The drone took off from the vicinity of the manipulator, and then gradually flew towards the fortified area. When the drone arrives near the fortified area and can carry out effective reconnaissance or sabotage activities, the distance from the drone to the fortified area is usually much closer than the distance from it to the manipulator.

In the above situation, all the uplink signals sent by the drone operator (sent from the ground to the drone) will be relatively weak due to the long distance. With the same power, because the defender is closer to the drone, the signal will be stronger than the manipulator. The downlink signal received by the defender will also be stronger than that of the drone operator. However, the goal of defense against the downlink signal is to prevent the drone operator from receiving it. At this time, the distance from the drone to the operator is about the same as the distance from the defender to the operator. Therefore, the blocking of the UAV's downlink signal does not have the advantage of terrain.

From the above analysis, it can be seen that it is more advantageous to interfere with the UAV's uplink signal. It just so happens that the uplink signal is usually a remote control signal, which is directly related to the control of the drone. If the uplink signal is interfered, the drone will lose immediate control and can only operate according to the steps preset by the program (usually landing or hovering). The downlink signals are mainly telemetry and images. Although there may be sensitive information, it is not so important compared to the control signal. In addition, the defender is not dominant in the situation and usually takes a laissez-faire attitude to the downlink signal.

Currently, Drone Frequency Jammer uses radio communication technology to control drones. By transmitting high-power jamming signals to the target drones and suppressing the control signals, the drones can be forced to land or return on their own.

Drone Signal Jammer FAQ:

What frequency band do drone jammers interfere with?

Can the directional antenna of the UAV jammer target the UAV (pinpoint interference)?

What is the frequency band of UAV jamming equipment? How many kilometers can the jamming gun interfere with the drone?

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