Product overview
The MMC Hongtianlei P4 is a UAV-mounted loudspeaker payload for airborne announcements, rescue coordination and command broadcasts during large exercises. Its physical package measures 225×272×221 mm and weighs 2.5 kg, defining the space and mass to accommodate during aircraft integration. Acoustic specifications include maximum sound pressure of 140 dB, horizontal-by-vertical directivity of 80° × 50°, and an approximately 90° upward viewing angle. Maximum power is 200 W, with an effective broadcast distance of 1000 m and an operating temperature range of -20°C to 40°C.
The second-generation digital voice broadcasting system combines a dedicated UAV network with LTE, allowing command-center personnel to make live announcements and coordinate remotely over LTE. Standard equipment includes a handheld microphone designed to suppress feedback and reduce environmental-noise interference, with a color screen for selecting audio files. Broadcast options include uploaded recordings, file playback, automatically ducked background music and text-to-speech supporting multiple dialects. A voice/text library provides quick access to routine announcements, while phone audio uploads and remote firmware upgrades support content and system maintenance.
Specifications
| Specification | Value & conditions |
|---|---|
| Effective broadcast distance | 1000 mAs stated for effective broadcast distance |
| Operating temperature | -20°C to 40°COperating range stated |
| Dimensions | 225×272×221 mm |
| Maximum sound pressure | 140 dB |
| Directivity | 80° × 50°Horizontal × vertical. |
| Upward viewing angle | Approximately 90° |
| Weight | 2.5 kg |
| Power | 200 WMaximum. |
| Communication links | LTE network link and dedicated UAV network |
| Audio formats | Mp3 / wav / m4a / flac / aac |
| Broadcast functions | Live speaking, recording upload, audio-file playback, background music with automatic ducking, and text-to-speech supporting multiple dialects |
| Handheld microphone and display | Handheld microphone with feedback prevention, environmental-noise reduction and a color screen for visual audio-file selectionStandard supplied equipment. |
| Content management and firmware | Voice/text library for quick recall of commonly used announcements, phone audio-file uploads and remote firmware upgrades |
| Broadcasting and strong-sound applications | Aerial announcements and broadcast coordination for large exercises and rescue operations; strong-sound dispersal mode for crowd dispersal and airport bird deterrence |
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