date-created: '2015-11-17'
date-updated: '2025-04-04'
manifest-author:
    name: Appropedia
    email: admin@appropedia.org
title: 'Open Source Ultrasonic Whistle'
description: "Wolves are a problem with reindeer husbandry. This 3D-printed ultrasonic whistle is a cheap method to be used as a wolf preventative. As problems grow worse, this solution loses it's use; however, as an initial preventative the whistle can provide some warding effects. Wolves have a much higher range of hearing than humans. Humans hearing peaks at about 20kHz, while most dogs can hear up to 54kHz."
keywords:
    - '3D printing'
    - husbandry
    - osat
    - 'ultrasonic whistle'
    - scare
    - wolves
    - Plastic
project-link: 'https://www.appropedia.org/Open_Source_Ultrasonic_Whistle'
contact:
    name: 'User:Tmjohnst'
    social:
        platform: Appropedia
        user-handle: 'User:Tmjohnst'
version: 68
made: false
image: 'https://www.appropedia.org/w/images/thumb/f/f8/Wolf_Whistle1.jpg/1280px-Wolf_Whistle1.jpg'
license:
    documentation: CC-BY-SA-3.0
licensor:
    name: 'User:Tmjohnst'
    affliation: 'Category:MOST'
    contact: 'https://www.appropedia.org/User:Tmjohnst'
documentation-home: 'https://www.appropedia.org/Open_Source_Ultrasonic_Whistle'
documentation-language: en