I am adding a GPS/depth finder to my 2000 Catalina 18 and am struggling with where to put the transducer. The model I'm looking at has a transom-mounted version which is supposed to be more reliable/detailed than "In-Hull", and supposedly easiest of the three types to install, however, I don't think I have room in the center of the transom below the water line (rudder in center, outboard engine on port side, and swim ladder on the starboard side). I could conceivably put it outside the rudder arc on the port side as long as it's clear of the engine - realizing that the water disturbance might affect readings until I can get under sail and raise the engine).
My 2nd option is In-Hull, but I'm trying to figure out the best placement and how to get access to the inside of the hull. It looks like I might be able to cut a hole in the sole just forward of where the porta-pottie sits, or perhaps even below the V-berth where there is smooth water and it's ahead of the keel. I understand I'll lose a little detail, but I really just need it for depth soundings (that's the most critical piece of all this due to where I'm sailing).
I have not 100% ruled out Through-Hull, but it would be an absolute last resort as I'm not keen on punching a hole in the bottom of the boat.
I'd be grateful for any insight/advice from Cat 18 owners on how and where they placed their transducer.
Thanks all!
Mark
My 2nd option is In-Hull, but I'm trying to figure out the best placement and how to get access to the inside of the hull. It looks like I might be able to cut a hole in the sole just forward of where the porta-pottie sits, or perhaps even below the V-berth where there is smooth water and it's ahead of the keel. I understand I'll lose a little detail, but I really just need it for depth soundings (that's the most critical piece of all this due to where I'm sailing).
I have not 100% ruled out Through-Hull, but it would be an absolute last resort as I'm not keen on punching a hole in the bottom of the boat.
I'd be grateful for any insight/advice from Cat 18 owners on how and where they placed their transducer.
Thanks all!
Mark