I was going to take my old loran antenna off the mount and remove the
antenna and clean the coupler body. Found the antenna is "frozen" in place.
Probably corrosion of one type or another. I've been squirting WD-40 at the
antenna base, hoping it would get down into the threaded area to loosen it
up. No go. When I throw a wrench on the antenna base, grip the coupler
tightly, and try to turn the antenna out, something turns, but it isn't the
antenna coming out. I think the metal threaded socket the antenna screws
into is turning in the plastic coupler body.

Now what? How do I get the antenna loose from the threaded metal socket
without damaging the coupler? I'm worried that if I keep twisting, I might
twist off a wire inside the coupler unit that connects the pc board to the
antenna.

How does the small pc board inside the coupler body connect to the threaded
antenna socket?