Quick Answer
Common mistakes when using survival whistles include failing to properly test the whistle before an emergency, not blowing the whistle loudly and consistently, and neglecting to use the whistle in conjunction with other signaling methods.
Misjudging the Whistle’s Loudness
When choosing a whistle, many people consider the product’s loudness claims but often don’t adequately test the whistle in a variety of environments. A whistle that sounds loud in a quiet room may not be audible over a distance of 1 mile in a windy or mountainous area. To combat this, look for a whistle that meets the 90-decibel standard specified by the International Organization for Standardization (ISO 8442-1). Test the whistle at varying distances and in different environments to ensure it will be audible to potential rescuers.
Inadequate Blowing Technique
Properly blowing a whistle requires consistent and forceful blowing for 1-2 seconds, followed by a brief pause before the next blow. This technique creates a series of distinct, high-pitched notes that can be heard over a distance. Many people blow the whistle erratically, resulting in a series of low-pitched, muffled sounds that may not carry far. To avoid this, practice blowing the whistle with consistent force and follow the recommended technique.
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