10-22-2005, 03:19 AM
I recently bought a Garmin 250 sonar and installed it on my boat. It has a dual frequency transducer. A 50 Hz with a 10 degree cone and a 200 Hz with a 40 degree cone. When I am using the more narrow cone I get a good clean display and can see fish and my tube jig without any problem. However when I switch over to the wide cone the screen clutters with stuff and I can't see my jig or fish. If I turn the sensitivity and gain way down I can get the clutter to go away but then can't see my jig or fish. Anyone have any idea's what could be wrong?? Here are the options I have considered...
1. Faulty unit
2. Faulty transducer
3. Interference from something (even happens when motor is off and no other electronics are running)
4. The water at Strawberry has been fairly dirty with moss and yuk and maybe the wider cone is affected by it more???
Anyone have any experience with this?
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1. Faulty unit
2. Faulty transducer
3. Interference from something (even happens when motor is off and no other electronics are running)
4. The water at Strawberry has been fairly dirty with moss and yuk and maybe the wider cone is affected by it more???
Anyone have any experience with this?
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