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Garmin 240 Blue Transduser

Old 03-26-2003, 04:45 PM
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Default Garmin 240 Blue Transduser

Have a Garmin 240 Blue to install on a 232 Sea Hunt and was wanting some info on transduser placement. Have heard that it loses the bottom at speed if mounted on transom. Was thinking about putting it in hull with epoxy, not worried about not having the temp. Does any one have this same set up? Thanks

Hoyt
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Old 03-26-2003, 07:15 PM
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Default Garmin 240 Blue Transduser

I've got the 160 Blue with a transom mount t/d and have no problem holding bottom at speed. Ducer is mounted right at the center chine, not sure if that makes a difference but it works for me.

Chris

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Old 03-26-2003, 08:30 PM
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Default Garmin 240 Blue Transduser

In to Deep
Do you have trim tabs? If so, does that seem to effect on the reading when you are running with them down?

Hoyt
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Old 03-26-2003, 09:14 PM
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Default Garmin 240 Blue Transduser

Basically the transducer will work fine at about any speed if you mount it (1) where it cuts into clean bubble free water (2) as far from the lower unit as possible (3) on the starboard side. Take care to place it where the water is always streaming nice and laminar out from undere the transom at all speeds. When you drill the mounting holes, be damn sure to leave lots of room to go lower. I think the manual's recommendation is too conservative. I get excellent results with double the factory recommended overhang below the hull. Sometimes the unit quits reading. Reach down and clean the weeds off the transducer.


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Old 03-27-2003, 03:44 AM
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Default Garmin 240 Blue Transduser

There have been many words typed here about mounting the transducer inside the hull. If you like, e-mail me and I will be happy to go over it with you.

old fishermen never die, they just smell that way
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Old 03-27-2003, 04:09 AM
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Default Garmin 240 Blue Transduser

No trim tabs yet. I can see where they could affect the transducer when down due to their close proximity. You could always go the 'thru-hull' route if you've got the nerve to drill a big hole in your new boat

Chris

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Old 03-27-2003, 05:30 AM
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Default Garmin 240 Blue Transduser

Hop'n Supprised me but I ran my boat for the first time with tabs this past weekend. My 240 blue would lose the bottom anything over about 18 mph, now with the tabs I held the bottom up to 35 mph; actually I only lost the bottom twice, once jumping a REALLY large boats bow wave and once in a high speed right hand turn. I guess the tabs changed my water flow over the ducer for the better.

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