#signal jammer

They first experienced a dropped signal strength from the WiFi signal but once it normalized, the GPS and satellite signals from a few drones completely dropped. One by one, more drones also lost their GPS signals until the entire fleet of drones broke down due to lost satellite connection. Normally, drones would lose GPS signals due to several factors (atmospheric disturbances, weather changes, solar activity) but the most common would be blocked signals like tall buildings or structures, which is why drone live shows are done in an open area. As someone who is a long-time drone user, we sometimes experience this when flying drones near huge mountains or tall buildings but it’s merely a weaker or erratic signal. The one experienced during the BLACKPINK Sandbox Drone Show was a total (0%) GPS signal loss on all of the dozen drones used in the event. Another possibility is that this was intentional and the signal jamming was meant to disrupt the event. This can be easily done with a GPS jammer. A GPS jammer is a small self-contained device that blasts electromagnetic noise and radio frequencies to a drone to disrupt its own signal. Read more in our articles including "BLACKPINK’s Sandbox Drone Show gets jammed, literally" and "NTC ask telcos to turn off network services during Papal visit".