DJI’s DJI Mavic 3 (Royal 3) drone has been on the market for some time. Recently, a customer reported to us a problem with the drone jammer they had previously purchased and installed, which did not seem to fit this new, larger drone model. Specifically, the DJI Mavic 3 (Royal 3) drone did not seem to be significantly affected by the jammer, especially in terms of preventing or forcing it to land. There seemed to be a significant gap compared to the jamming performance of other drone models. The customer wanted to understand the reasons behind this and find a suitable solution.
First of all, it is worth noting that with each new release of DJI drones, the anti-jamming capability is further optimized and upgraded. According to our detailed analysis and understanding, the remote control flight control and image transmission of DJI’s new Mavic 3 drone use the commonly used 2.4GHz and 5.8GHz frequency bands, but the anti-jamming performance, especially in frequency hopping, has been significantly enhanced. Compared with the previous generation of products, a significant change is the addition of the Beidou positioning module to the navigation and positioning system. With this in mind, we can begin to analyze why the deterrent and forced landing effects of drone jammers on DJI Mavic 3 drones have been weakened.
Previously produced and supplied drone jammers often have built-in GPS navigation and positioning jammers, but the frequency coverage may not reserve enough bandwidth to fully target the Beidou navigation frequency. From the perspective of frequency division, the Beidou navigation frequency range happens to overlap with the start and end areas of the GPS 1.5GHz band. Fortunately, the solution to this problem is not complicated. Our suggestion is to send the original drone jammer back to the manufacturer and readjust the transmission frequency within the GPS band.
Faced with the continuous launch of various new types of drones, drone jammers cannot stand still. They need to keep up with the progress and development of drone technology and keep updating and improving at all times!
