Hi - I have a Raymarine I 50 tri-data connected to an Airmar P319 depth transducer. Looks like the current transducer was installed in 2015. The transducer is located under my galley sink.
I get a lot of false readings and shallow water alarms that are annoying. I do not think I had all these shallow water alarms when I first got the boat in 2017 - not totally sure about that.
The Airmar install guide does not recommend installing behind the keel on a sailboat where mine is located. Based on my research the best location for a depth transducer is in front of the keel on the center line.
Do other C36s have depth transducers located under the galley sink? Is this a decent location for the depth transducer?
Do I need to move my depth transducer?
Any other suggestions to get my depth transducer working better?
Thanks
Greg
S/V Bardo
Hull # 828
Seattle, WA
Yes, definitely in front of the keel. It must be in undisturbed water. If there are strong currents below it reads that depth as if the sound was bouncing of the land, even when installed in front of the keel.
Sail La Vie 1999 Catalina 36 MKII, M35B-17031, Coyote Point, San Mateo, CA
About Sail La Vie
Ours (from what I can tell, the original) is under the galley sink as well. Never had issues...
Matthew Chachère
s/v ¡Que Chévere!
(Formerly 1985 C36 MKI #466 tall rig fin keel M25)
2006 Catalina Morgan 440 #30.
Homeported in eastern Long Island, NY
Depth sounder installed in front of keel near the paddle wheel speedlog.
Durk Nijdam
S/V "SILER"
Catalina 36MKII - 2001 / hullnr. 2013
Stavoren - Holland
Our's is positioned the same as Durk's. Do you have paint or growth build up? Both can impact performance.
Paul & Wendy Keyser
"First Light"
Rye NH
2005 C36 MKII #2257
Wing, M35B
Reviving this thread a bit - we have same location, under the galley, but are updating this season. Reading above and also asking online - while preference seems to be relocate them, the responses are less then overwhelming. For those with Galley locations, anyone else finding weird readings and worth relocating? Its seems our old (about to be replaced) speed transducer was faster, but not sure if it was in great shape otherwise.
Hi Greg,
My transducer on the 1985 C-36 ft was aft of the transmission. It gave out mid-season. I replaced with an Airmar transducer similar to this one: P95M Chirp-ready In‑hull | AIRMAR
I was able to do it while the boat was in the water. I mounted it off the center line about where the mast is, but under the starboard cabin adjacent to the mast in the saloon. While not the perfect location, it works fine. No worries about hull leakage and readily accessible by removing one drawer. A good compromise. If you have the long keel, the offset is 4' 4".
Best regards,
Lou Bruska
Sojourn
1985 C-36 Mk-I TR #495
Eldean Shipyard
Lake Macatawa (Holland, MI) Lake Michigan
Rallyback@comcast.net