For a local department to justify a drone jammer, I would think that they would need to prove that there is a legitimate threat from drones to the community. Now, many small departments own MRAPs or similar vehicles so I could be very wrong.
The school installed mobile phone signal jammer shield, the dongguan students caused a lot of response, “our school also has this practice, today just know need approval, how do you complain?”According to foreign media reports, Nissan (Nissan) has demonstrated its weapons against the latest driver distraction – a prototype on can be installed in the future car compartment, is reportedly can block cell phone signals, caused greatly reduced cell phone distractions.
With the interest in drone jammer from various militaries around the world growing, the company’s shoulder-fired jammer, the drone gun jammer, has been certified safe for human exposure.The Army has no standard-issue offensive jamming gear at all, although some is being developed and ad hoc kit is being hastily fielded to Europe. The Air Force has the EC-130H Compass Call, but it’s a big and slow target derived from the C-130 turboprop cargo plane, and the aircraft is wearing out.
In recent years the threat of drones has become increasingly vivid to many security agencies. Drones, nowadays, are used by terrorist and criminals for a multitude and variety of activities such as dropping small bombs on enemy forces in Syria and Iraq, and the same drones are often used for reconnaissance and smuggling of illicit contrabands to prisons.
Basically, the drone jammer creates an envelope of jamming which surrounds the drone. Concretely, the system jams the downlink signal of the drone to the drone operator and the signal coming from the GPS satellite.