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Couple who installed high-pitch 'mosquito' alarm to ward off racist teen vandals are now under investigation for noise nuisance | Daily Mail Online
![SkyTrain alarm designed to discourage loitering ran only for testing purposes, says TransLink | CBC News SkyTrain alarm designed to discourage loitering ran only for testing purposes, says TransLink | CBC News](https://i.cbc.ca/1.6899539.1688684049!/cumulusImage/httpImage/main-st-skytrain-deterrent-mosquito-alarm.jpg)
SkyTrain alarm designed to discourage loitering ran only for testing purposes, says TransLink | CBC News
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Electronics | Free Full-Text | Autonomous Trajectory Planning and Control of Anti-Radiation Loitering Munitions under Uncertain Conditions
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The Mosquito Alarm is designed to repel youth away from areas by playing noise at a frequency most adults can't hear. : r/HostileArchitecture
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Couple face £5,000 fine for using anti-child device on their home - to keep "screaming" kids away - Mirror Online
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