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Title: Radios in Tunnels
Description: Electronics Engineer Dennis Camell (foreground) aligns antennas in an old California silica mine for a NIST study identifying optimal frequencies for radio signal transmissions in tunnels.

*EEEL
Subjects (names): Camell, Dennis
Topics/Categories: Communications--Telecommunications
Type: Photo/Color
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
Credit: G. Koepke/NIST
AV Number: 08EEEL008
Date Created: May 2008
Date Entered: 5/13/2008

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