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181. An Inmarsat-C terminal shows a «No Receive Signal» alarm. There is no voltage on the antenna center pin. What is the most likely cause?
A 'No Receive Signal' alarm and lack of voltage on the antenna center pin indicate a power interruption to the antenna electronics. The most likely cause is a blown antenna power fuse in the above-deck equipment, as this directly affects power delivery to the antenna without impacting overall terminal operation.
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