Saw on another source neither the US carrier or its support destroyer were broadcasting their beacons. According to that source this is allowed when air operations are occurring, but there's no indication they were, so the US ships should have been broadcasting.
Ah, that "were". For that one I had said "neither the US carrier or its support destroyer were broadcasting". With your suggested edit your "not" would negate my "neither" making the statement communicate that the ships WERE broadcasting.
No worries at all. Long after the fact I thought of two or three ways to make it more understandable. I gave up a long time ago trying to fix the past to perfection. :)