Use of a Parabolic Microphone to Detect Hidden Subjects in Search and Rescue

ConclusionsUse of a 66-cm (26-inch) parabolic microphone significantly improved detection and comprehension of hidden calling subjects at distances between 322 and 2510 m when compared with unaided hearing. This study supports the use of a parabolic microphone in search and rescue to locate responsive subjects in favorable weather and terrain.
Source: Wilderness and Environmental Medicine - Category: Environmental Health Source Type: research