Lots of Noise

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum Dan,

When fishing in water depths greater than 600' and/or the sounder is unable to acquire bottom, then the sounders filters will be adjusted to their greatest level of sensitivity to better improve the chance of getting a bottom return. When using the product under such conditions, it is recommended that
- the depth range be manually configured to the desired depth range within the first 600' of the water column
- the Noise Filter setting be switched from Auto to Manual and that the sensitivity be reduced to decrease the noise to an acceptable level
- the Gain and Color Gain settings be switched from Auto to Manual and that they be reduced to decrease the noise to an acceptable level