Topic: sonar recording sample

[Milieucel]

We will by a Humminbird 998 SI (200/83khz) for fish stocks evaluation in small lakes. We are looking for sonar recording sample Humminbird 998 SI to check if can use them with Side Sonar Scan to calculate fish abundance (http://www.oceanecology.ca/SideScanCalculator.htm). We ask already several months to Watersport Matheussen Belgium for sonar record of Humminbird 998 Si ( .dat & .son & .idx files) to do this check, without results. Can you help us with small sonar recording sample of Humminbird 998c SI Combo .