How useful are Anti Drone Guns and how does it work?

There are various types of anti drone guns, and systems are available in the world, and every system has its purpose, and benefits, just like anti drone guns destroying other drones through a net. 

 

• Anti-drone nets are additional physical countermeasures that can be launched using compressed air or propellant from a handheld device or another UAV. Anti-drone guns fire a small amount of netting using compressed air. The bet expands out as it travels, tangling the drone’s propellers.

 

Some drones are built for a specific function and transmit a single type of signal, while others are capable of transmitting many signals based on the desired use of the drone. Even the control signal and GPS signal can be jammed.