Marine Cpl. Daniel Trapp, a network systems administrator assigned to I Marine Expeditionary Force Information Group, monitors radio signals on a commercial electromagnetic frequency detector during a communications field testing exercise at Naval Air Station Point Mugu, California, Apr. 20, 2021. The purpose of the exercise was to evaluate the capability and compatibility of commercial equipment with tactical assets in austere environments.

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Photo credit: © Operation 2021 / Alamy / Afripics
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Keywords: 9th, camp, comms, marines, mef, mig, mugu, pendleton, pt.