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Garmin gps/sonar

Old 03-19-2007, 08:34 AM
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Default Garmin gps/sonar

I just bought a Trophy 2002wa and I need a gps/sonar unit and I saw some of the new garmins that I liked. It is what is going to replace the 498 unit. I just have a for right now I will ask more in a little bit. For the transducer is a transom mount or a through the hull better? Also if you have any other units that will be better for about the same price please let me know. Also will the inter gps receiver work if I have a fiberglass hardtop or should I get an external one?
Old 03-19-2007, 09:08 AM
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Default Re: Garmin gps/sonar

Its all about keeping the transducer in "clean" water. on a boat your size, the only thruhull that would be good would be the airmar B60 tilted angle, as a 20 footer isn't going to tolerate a thruhull that needs a fairing block. Unless you have "dificult" transom (stepped twin outboards plus trimtabs) I'd go with the transom, but not the stock one, get the one that uses the airmar p66 chassis, its about $140 seperately.
Old 03-19-2007, 03:49 PM
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Default Re: Garmin gps/sonar

It has electronic trim tabs but only one engine so I have some room on the transom. where can I buy an airmar p66? That is just a housing. How do I know if a transducer fits it in? Do all transom mount transducers work with all manufacturers? I am so lost sorry.

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