Hey CF,
Sounds like you were listening on Saturday morning when we were discussing transducer upgrades!
If so, thanks for listening! If not, I apologize for accusing you of not sleeping in on Saturday morning!
Transom-mount transducers are a wear item just like tires on your boat trailer. In fact, if your boat trailer has been kicking rocks up at your transducer as you go down the road, the "face" of your 'ducer could be scratched or pitted.
The best case scenario is that these scratches only cause turbulence that slightly degrades its performance. Worst case? One of those pits could allow water into the 'ducer housing and your ducer has a terminal case.
How can you tell if you may have an issue? Take a look at the license plate on your boat trailer. If it looks like someone patterened their shotgun on your plate then you can bet that your 'ducer has taken a few "shots" as well!
Here's a link to the product description of the Airmar P66
http://www.airmartechnology.com/2009/products/marine-product.asp?prodid=48&manf=LowranceHere's a link to Lowrance/Simrad's direct ordering site (formerly LEI Accessories)
http://store.navico.com/Products/000-11062-001The P66 is a quality transducer that delivers a great picture. You will not be dissapointed!
