Portland Police demonstrates LRAD acoustic device
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Portland Police demonstrates LRAD acoustic device
Jun 6, 2020
katu.com
📢📢 REMINDER - Long Range Acoustic Device (LRAD) emergency alert systems will sound today, Saturday, September 6th at 12 PM.⁠ ⁠ Be a part of our team and share your experience by completing the "Did you hear it?" form. As a reminder, don't call 911 when you hear sirens or as a means in providing feedback to the "Did You Hear It" campaign. → https://bit.ly/35qGDMk | Southern Marin Fire District
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📢📢 REMINDER - Long Range Acoustic Device (LRAD) emergency alert sy…
34 views6 months ago
FacebookSouthern Marin Fire District
What is LRAD? The ‘sound cannon’ used by police, explained
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What is LRAD? The ‘sound cannon’ used by police, explained
Jun 5, 2020
Digital TrendsWill Nicol
1.5K views · 11 reactions | What is an LRAD, and How Does It Work Long Range Acoustic Device #militaryequipment #tech | Spooky Reads | Facebook
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1.5K views · 11 reactions | What is an LRAD, and How Does It Work L…
672 views1 week ago
FacebookSpooky Reads
LRAD (Long Range Acoustic Device) — это направленное акустическое устройство дальнего действия, предназначенное для передачи звука на большие расстояния с высокой четкостью. Такие системы часто используются в военных, правоохранительных и гражданских целях. Основные характеристики LRAD: 1. Высокая направленность звука: Устройство фокусирует звуковую волну в узкий луч, что позволяет передавать четкие сообщения на расстоянии до нескольких километров. 2. Громкость: Уровень звука может достигать 150
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