To those who've been asking, I saw a magnetic mount antenna up on the wheelhouse roof already, so, it would work.
The image sizing is the result of the webmaster resizing the image. He seems to have made a new page where it appears full-size:
www.cruisenh.com/mountcam.html. All these are still temporary links until they say otherwise, and this is still
beta version only while various minor "issues" are being smoothed out.