Through hull on aluminum

[Scarecrow]

I've just got a HB 899 and my transducer for my smaller unit is in the way. I still need it for running down the water. Can I mount it on the inside of the boat. If so can I use the transducer that came with it or do I need to get something else. I don't care if it affects the picture or any thing else just as long as it will tell the depth.
Thanks

[rnvinc]

It is doubtful the existing smaller xducer will work thru an aluminum hull....

You have 2 options...well maybe 3...

1. Alumaducer...I have no experience with... http://vexilar.com/products/index.php?prodNum=TB0023AU
2. XNT 9 20 transom mount 2d xducer and the AS SIDB Y cable
3. Use the stock xducer that came with the 899 and try to adjust the positioning to get high speed readings...

Rickie

[vic n]

Why nor just get rid of the smaller unit and get all readings from the new unit?