Moose,

I went to Hummingbird.com and they do not list the 797c2 SI combo unit... I have read on a Yahoo.com group board and someone stated that you need to buy an additional Transducer in order to use the unit properly...Is this true, do you know....

I already got a Lorance X51 in my dash console, do I need to take it out completely in order to use the side unit effectively...

I guess I need to go see someone who has one installed already on their boat or a dealer that is familiar with the unit....

I just want to be sure of the unit 100% before I invest this much money for a unit like this.

Thanks, Clyde