Quote Originally Posted by Humminbird_Greg View Post
Laserdoc,
The best GPS Receiver location is right over (or as close to) the transducer that the unit is using.

That would be the XHS-9-HDSi-180-T transducer and it is the same model as the one that came with your 997 unit.

The power cable for your 997 unit should be different than the one that came with the 797. It should be of a larger gauge for added current carrying capability and have an in-line filter built into it. If not, than it may be an older model 997 unit. Can you send me your serial number and I can tell you when it was built.

There should be no difference between the 797 and 997 as far as tracking the bottom at speed. It sounds like you are getting air up under the transducer. Adjusting and/or moving the transducer is your only options unless you want to install a second (2D sonar only) transducer on the transom as mentioned. This could be connected to the HDSi transducer and your 997 by either a TS2-W Transducer Switch or an AS-Si-DB-Y cable. If you want to move the HDSi transducer to another location I would get one of the transducer mounting boards that has been mentioned.

We make a trolling motor mount Compact Side Imaging (CSi) transducer for the 797 unit. It is the XTM-9-Si-180-T. We also make an AD-STM-7 adapter for that HDSi transducer to mount to the trolling motor. There are also other companies that make adapters for the Si transducers mounted on trolling motors like Scap at Transducer Shield & Saver.
Greg,
the serial number is 9101903-0030
GPS puck is a AS GR 50.
Guess I will make a run to BPS to get one of those transducer mounting boards. Seems to be a better solution than buying and extra transducer and addind a switch.
When I ordered the XHS-9-HDSi-180-T transducer for my 797 they also sent a power cable with a inline choke in it so I may already be set.
It was the interferience kit for a trolling motor setup