I recently installed a new fish/depth finder. The transducer is mounted on the transom. The depth has been reading in the 30-35 feet area since I installed. I have been on two different lakes and neither are that deep. The readings do change but not as much as it should. It does not matter whether cruising at 40 mph or sitting in the lake with engine off. Does it have something to do with the level of the transducer itself? The unit is a Garmin Echo. Any ideas?
Thank ins advance.
Thank ins advance.