Drone Jammer System

Frequently Asked Questions (FAQ)

Question: Does Drone Jamming causes Drones to crash, risking people’s lives and property ?
Answer: the Drone Jammer does NOT cause Drones to crash. Upon activating the Jammer, the Drone will either land safely on the spot, or will make a safe "Return Home" (if the Jammer was not configured to jam the Drone’s GPS reception capability).
Question: Does the Drone Jammer transmit constantly (100% of the time) ?
Answer: the Drone Jammer starts transmitting power ONLY when a Drone is detected by the Drone Detection subsystem. As a default, this transmission will last no more than 30 seconds, and during this time the Drone will either land on the spot, or make a safe "Return Home" (if its GPS reception is not jammed as well).
The short jamming (transmission) time also implies that if the Jammer is interfering with a certain communication equipment/link operating in the same frequency band, this interference will be temporary and extremely short.
Question: Does the Drone Jammer interfere with Cellular communication ?
Answer: the Drone Jammer is transmitting power mainly in the Drone's popular bands of use; therefore, Cellular communication is NOT affected. However, there might be other communication means affected by the Drone Jammer’s transmission, if they share the same frequency band used by Drones.
Question: How many and which “attack” channels should be used ?
Answer: The more “attack” channels used, the better. In theory, all frequency bands that are in use by commercial Drones should be covered, and even beyond that. However, the client needs to carefully examine the following points:
 • Cost: more channels used -> the higher the cost is;
 •  Interference: there are applications, other than the Drones application, that might be using the same frequency band used by Drones, and therefore might be interrupted for a short time whenever the Drone Jammer is active/ transmitting (e.g. when jamming the GPS signal);
 • Transmission prohibition: in many places, there are frequency bands in which jamming is prohibited or restricted (according to the local law); Even in places in which transmitting in certain bands is allowed, usually a specific permission /certification should be first obtained.
Question: What is the output power per channel, which should be used ?
Answer: The output power of each channel is directly linked to the jamming range or “Ratio of Distances” (as was thoroughly explained in the article “what is the range of your Drone Jammer?”). Therefore, the higher the output power is, the longer the Jammer’s range is. However, the client needs to carefully examine the following points:
 •  Cost: higher output power used -> the higher the cost is;
 •  Interference: higher output power used -> the bigger the interference range is, as well as the chance of interfering shortly with a non-Drone application, that might be using the same frequency band used by Drones;
 •  Transmission limitation: in many places, there are frequency bands in which transmission levels are limited (by local law).
Question: Which antenna type (directional or omni-directional) should be used ?
Answer: the advantage of using an omni-directional antenna, is that a single Jammer might be used in order to protect an area from all directions (360°). The disadvantage of using an omni-directional antenna is the relatively shorter jamming range, as well as the generation of possible interference in all directions.
The advantage of using a directional antenna, is that the jamming range in a specific direction is relatively longer. The disadvantage of using a directional antenna, is the need to use several Jammers in order to protect an area from all directions (360°).
Question: Can the Drone Jammer’s directional antennas be aimed at the Drone (Pin-Point Jamming) ?
Answer: some Drone Detection sensors (e.g. Radar) allow for directing/aiming the Jammer's Directional antennas at the Drone, thus creating a directional/Pin-Point jamming. The Pin-Point jamming will cause less interfere with the environment, but will be INEFFECTIVE in the “Drone Swarm” case, or even in the simple case of two (2) Drones approaching from opposite directions.
As explained above, the jamming/transmission time is extremely short (up to 30 seconds), and will interfere only with communication equipment/link that operates in the same frequency band that the Drones use. Therefore, it is better to consider jamming a wide angle (or even 360°), risking a short interference, but having a much higher level of protection (there is no limit to the number of simultaneously approaching Drones that can be jammed, when a Jammer with an omni-directional antenna array is used).
Question: Does the Drone Jammer’s supports “Selective Jamming” ?
Answer: The Drone Jammer supports “Selective Jamming”. However, in order to jam ONLY the relevant frequency band, it needs the Drone Detection subsystem to have an integrated RF Receiver Sensor. The RF Receiver Sensor is the ONLY sensor that is able to verify the frequency used by a specific Drone, thus being capable of correctly “guiding” the Jammer to jam a specific frequency band. Another option of “Selective Jamming” might be the jamming of a specific sub-band, being part of a much wider frequency band that needs to be jammed (e.g. a portion of 20MHz in the 2400-2484MHz WIFI band). Clients that are interested in this option, are usually thinking of how to allow their Drones (“friendly” Drones) to continue to operate, while an unauthorized Drone (“enemy” Drone) is being jammed. Of course that this type of “Selective Jamming” might also be supported by a Drone Jammer system (featuring a RF Receiver Sensor too), however this case is much more complex, expensive and less efficient, unfortunately. The fact that the “enemy” Drones are using the entire band, dictates that the entire band needs to be jammed. If the equipment keeps “jumping” between the 20MHz portions (“responsive jamming”), not only that it does not allow for much flexibility in the operation of the “friendly” Drones, but it is also much less efficient in jamming the fast communication “enemy” Drones. Worse still, this “responsive” system costs much more, even though it is much less efficient. For further details, refer to the article “On a Spoon - Jamming of Communication Signals”, published by IACIT recently.
Question: When comparing a “standard” Drone Jammer with a Drone Jammer “gun” - which product offers a better protection ? Which product is more cost-effective ?
Answer: a comparison between IACIT’s “DroneBlocker” and a typical Drone Jammer “gun” is summarized in the following table:



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