A digital dynamometer, a device used to measure force, is used by Pfc. Christopher B. Alvey, radio operator, 13th Marine Expeditionary Unit, to ensure enough helium pressure is established for launch, July 14. The Combat SkySat allows radio coverage over a 600-mile radius at an altitude of 100,000 feet.
<dl><dd>Unit: I Marine Expeditionary Force</dd>
<dd>DVIDS Tags: communications; balloon; Marines</dd></dl>
Sgt. Marcy Sanchez
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