01
AES-128 Encryption
Audio is digitised and encrypted on the hardware layer before transmission. A detected signal cannot be demodulated or recovered without the pairing key.
The K9-SAT-001 is the core encrypted listening device of the range — a compact, battery-powered covert audio transmitter delivering AES-128 encrypted digital voice over a frequency-hopping RF link.
The K9-SAT-001 is engineered for deployments where transmission security and intercept immunity are mission-critical. Built around the S2-LP digital radio platform, it captures audio and relays it as an AES-128 encrypted, frequency-hopping transmission — a secure covert audio link that yields nothing usable to a counter-surveillance receiver even if the signal is detected.
As a digital encrypted audio transmitter rather than a clear-voice bug, it is the foundation of the K9 covert audio range. Body-worn or room-deployed, battery-powered for flexible placement, and paired with the K9-SAR-001 receiver for live monitoring.
Audio is digitised and encrypted on the hardware layer before transmission. A detected signal cannot be demodulated or recovered without the pairing key.
Frequency-hopping spread spectrum keeps the RF footprint low, presenting as transient noise that bypasses routine TSCM sweeps and spectrum analysers — no fixed carrier to lock onto.
Efficient 3200 bps voice compression maximises range and endurance over a narrow encrypted link.
Self-contained battery operation for rapid, flexible deployment without a mains connection.
Factory-set to operate within 413–479 MHz or 826–958 MHz (covering the common 433, 458 and 868 MHz points) — no field re-tuning to misconfigure.
Links only to an authorised K9-SAR-001 receiver holding the matching key.
Engineered for rapid deployment by covert and investigative units. The compact profile suits use as a stationary room transmitter or a body-worn audio transmitter during undercover work, where a low RF footprint and intercept immunity are decisive to operator safety and evidential integrity.
The combination of frequency hopping and robust digital modulation holds the audio link together in dense urban RF — amid cellular, Wi-Fi and two-way-radio traffic — where clear-voice consumer and hobbyist devices degrade through signal collision.
Detailed figures — power output, sensitivity, range and endurance — are released to qualified buyers on enquiry, subject to end-user qualification and UK export controls.