posted 10-19-2002 03:22 PM ET (US)
Incidentally, dboy, you might want to check the following:Occasionally, my transom-mount transducer will 'flip-up' at high speeds, rendering it useless. This is a safety mechanism intended to save the TD incase of contact with an object. When I stop, or idle, it works fine.
My transducer will transmit at 50 or 200kHz, I can't remember which is better for deeper water, but one of them is (salt vs. fresh water affects it also, I know).
You might try switching frequencies if your fishfinder supports it. Mine (a Raytheon L470) will run in 'split' mode, showing the signal from both frequencies.
When I run on L. Superior, I often find myself in more than 200' of water, and I've had no problems shooting the bottom using either frequency.
I hope this helps.
Dave