To configure echo sounder settings in the survey style

1. Tap and select Settings / Survey styles / <Style name>.
2. Tap Echo sounder.
3. Select an instrument from the Type field.
4. Configure the Controller port:
   • If you set the Controller port to Bluetooth, you must configure the echo sounder Bluetooth settings.
   • If you set the Controller port to COM1 or COM2, you must configure the port settings.

5. If required, enter the Latency value.

   The latency caters for echo sounders where the depth is received by the controller after the position. The Trimble Access software uses the latency to match and store the depth when it is received with continuous topo points that were saved previously.

   There are many factors involved in correctly pairing positions with accurate depths. These include sound velocity – which varies with water temperature and salinity, hardware processing time, and the speed at which the boat is moving. Make sure that you use the appropriate techniques to achieve the required results.

6. If required, enter the Draft value.

   The Draft affects how the antenna height is measured. If the Draft is 0.00 then the antenna height is the distance from the transducer to the antenna. If a Draft is specified, then the antenna height is the distance from the transducer to the antenna, minus the draft.

7. Tap Accept.
8. Tap Store.