01
Paired-Key Decrypt
Recovers audio only from transmitters holding the matching AES-128 key.
The K9-SAR-001 is the monitoring half of the system — a remote listening device that decrypts and tracks the frequency-hopping encrypted link in real time, from a safe distance outside the target area.
A transmitter is only half a covert audio system. The K9-SAR-001 is the paired receiver that makes remote listening possible: it locks to the frequency-hopping sequence, decrypts the AES-128 audio with the matching key and presents clear monitored audio to the operator.
Paired-key security means only an authorised receiver can recover the audio from a K9 transmitter, so an adversary intercepting the signal gains nothing. The unit is built for covert field monitoring of one or more deployed transmitters from outside the target area.
Recovers audio only from transmitters holding the matching AES-128 key.
Locks to and follows the frequency-hopping sequence for a stable monitored link.
Real-time clear audio output for the operator during deployment.
Capable of working with more than one deployed transmitter.
Built for covert use outside the target area.
Interception of the link yields nothing without the receiver and key.
Detailed figures — power output, sensitivity, range and endurance — are released to qualified buyers on enquiry, subject to end-user qualification and UK export controls.