Drones / U.A.V can be shot-down (cannon / machine gun / missile, etc) but cannot be jammed when equipped with KERES system.
KERES is an Jamming Resistant RF Data Link for Drone and U.A.V Control.
KERES main features :
▪ Pre-flight user selectable TX/RX bands and channel frequency. Not restricted to use the standard ISM frequency bands that commercial drones and most (i.e. not sophisticated) jammers use. End user carries full responsibility for unauthorised use.
▪ Pre-flight user selectable hardware RF filters to improve out of band interference.
▪ Channel frequency change during flight commanded by the user.
▪ OFDM modulation for improved narrow band interference.
▪ Interference and/or bad signal conditions alert before as well as during flight.
▪ Option for ground station directional antennas.
▪ MIMO support.
▪ Direct Sequence Spread Spectrum DSSS.
▪ Frequency Hopping Spread Spectrum FHSS.
▪ Airborne RX band stop filters for known jammer bands.