Quote Originally Posted by Red Ryder View Post
With both attached to the stern on opposite sides the garmin is working the same but the lowrance seems to be always marking fish. The garmin is a garmin fishfinder 90 and I think it's frequency is 200kHz. Does it sound like an interference problem or just an adjustment that needs to be made in the settings?

But on the plus side the Gps function works like the cats a$$
Sounds like your Garmin sonar or the transducer is not working properly, the two will interfer with each other if both are transmitting on the same frequency. It could be an adjustment also like you said.