Views: 0 Author: Site Editor Publish Time: 2026-09-30 Origin: Site
When a drone needs to be heard, every decibel counts. RIBRI recently subjected the RA11Z — its drone mounted directional acoustic hailing device — to comprehensive outdoor field testing, capturing real‑world performance data across operational scenarios.
The RA11Z is a drone mounted directional acoustic hailing device. Purpose built for fast, on site deployment, it attaches to a UAV in approximately 1.3 seconds and delivers intelligible voice commands across multiple kilometers. It combines aerial maneuverability with targeted, long distance sound coverage to support high demand operational scenarios.
Key capabilities
1.3 second rapid clamp on installation — secures onto compatible UAV platforms and becomes operational nearly instantly, cutting down ground setup time for field missions.
High-intensity acoustic output — produces 149 dB peak SPL@1m, 139 dB continuous SPL@ 1 m, generating forceful, high-impact audio output for effective acoustic deterrence and public alert announcements.
Field-proven speech intelligibility — achieves a 0.9 speech intelligibility rating at test distance, ensuring verbal messages remain comprehensible to target recipients.
UAV optimized directional sound beam — focuses audio output precisely toward intended targets instead of wasting energy on surrounding areas.
Robust construction for harsh operational environments — brings the advantage of elevated airborne vantage points together with dependable command broadcasting over wide geographical areas.
Where it fits
Low-Altitude Security — add a directed voice layer to drone patrols for airspace and site awareness.
Public Safety & Search and Rescue — deliver guidance to crowds or stranded subjects from a safe overhead vantage.
Mass Notification — broadcast clear commands across wide areas during emergencies.
Critical Infrastructure — support site alerting and perimeter communication from the air.
Maritime — hail vessels or shore teams from an overhead platform.
Platform Integration — drops into existing UAV payload workflows as a ready voice module.
From overhead deterrence to large scale emergency notification, the RA11Z delivers one fast deployable aerial voice solution for operators. Gain enhanced situational reach, clearer audio transmission, and swifter emergency responses.
Watch the RA11Z product introduction on YouTube: https://youtu.be/hyK5PNVpWcY
