A little clarification.
Ralph said . "Frankly, I think the fact that Glued In-Hull mounting, almost Any where on our boats, Even with a slight Angle, Is not much of a problem. The Cone shape of most Pleasure boat transducers is so Broad that the small amount gained by putting it forward and Vertical doesn't amount to much." The cone Ralph is referring to is the spread of the acoustic pulse coming out of the transducer as it extends down through the water. If you could see it would look more like a flash light beam than a laser pointer. That's what allows the depth reading remain reliable as the boat heals. Wing Tip came with a fish finder transducer mounted far forward and a depth sounder below the front of the cockpit. As Ralph said they read the same except for maybe when I'm floating on to the trailer. I only know of two instruments that give you a forward looking depth alarm capability. One is the Interphase line of forward looking phased array sounders (fish finders) and the other are the Standard Horizon GPS Chart Plotters which can be set to alarm on the charted depth a specified distance out in front of the boat. I have the chart plotter alarm solution implemented. If you had a narrow shallow channel to navigate one of the Interphase products would let you see the channel in front of you. Phil Agur <http://www.catalina27.org/public_pages/profile270.htm> s/v Wing Tip C270 LE #184 MMSI 366901790 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ralph Ahseln Sent: Thursday, January 21, 2010 11:54 AM To: [email protected] Subject: Re: [IC27A] Depth Sounder From: tedp...@aol. <mailto:tedp249%40aol.com> com Sent: Thursday, January 21, 2010 11:12 AM To: ic...@yahoogroups. <mailto:IC27A%40yahoogroups.com> com Subject: Re: [IC27A] Depth Sounder Ralph, Where did you mount yours? Ted, I have an 1984 Standard cabin, Inboard Diesel boat The Transducer is mounted Port side, in the Engine compartment. Under the sink area, in my standard layout It's an easy place for me to access. I have some physical limitations. If I were to put it in a different place, I'd remove the molded-in battery shelf under the V berth, forward of the holding tank. I would be a long cable run, but nothing too bad. I've heard of folks mounting them under the settee as well. I might say that a lot of folks rig up a temporary Water filled container or sticky tape down with some kind of glop... heard of using things like "personal" jellies between the foot of the transducer and the hull, kind of like ULTRA Sound tests,,, Then that setup is moved around to different locations in the boat, making several TESTS in Known depth locations.... Doing so would surely give one a better feeling of confidence of how it's operating. It's probably a good idea. Regards, Ralph Ahseln [Non-text portions of this message have been removed] [Non-text portions of this message have been removed]
