Aboard an aircraft carrier, the deck-edge antennas (normally vertical within a very few degrees) are lowered to 90 degrees outboard, or sometimes 120 degrees, depending on what's happening on the flight deck. This includes both transmitting antennas and receiving antennas.
Since some time in the 1970s, when the Navy pretty much did away with HF (and CW
), there hasn't been much in the way of studies done, AFAIK, concerning radiation patterns/interference on the HF side. These days, the HF transmitting antennas are located primarily aft, both port and starboard, and the receiving HF antennas are forward.
We never had much of a problem with staying terminated with shore stations when we'd lower/raise the antennas. At least not on the CW circuits. I believe the "covered circuits" had a few problems now and then. These days, however, they rely on satellite links for everything. As I tell today's "Radiomen" (who now are called "Information Specialists" or "Information Technicians") when I was a Navy Communicator, the only "satellite" we had was called "the moon", and we didn't rely on it for help.