Heavy rain affects Depth sounder and Fishfinder

[Cadence]

Originally Posted by Simi 60

Nope, 1 on both on no difference.

If you figure it out please let us know. Could it have something to do with water surface tension?

[a64pilot]

I also have two depth finders, the standard Raymarine depth gauge and I added another as my Zeus touch supports one.
I will lose both in heavy weather, I know what is getting mine, it’s aerated water, turbulent water etc.
Have a big power boat pass me close by that really whips a lot of air into the water, same thing. I lose both depth readings until the water clears out, and this is the ICW where it’s calm. Happened a few weeks ago, has only happened once in the ICW.
It’s taken me a couple of years to figure this out as it’s months usually between it happening, the first time was a Summer Thunderstorm in the bay in Panama City Fl, you know blinding heavy rain and 45 kt winds, lost them for a couple of minutes.

[Simi 60]

Originally Posted by a64pilot

I also have two depth finders, the standard Raymarine depth gauge and I added another as my Zeus touch supports one.
I will lose both in heavy weather, I know what is getting mine, it’s aerated water, turbulent water etc.
.

Pretty obvious I'd reckon.

Whats not obvious to me is why both and why when the transducer is 6ft under?

[a64pilot]

Originally Posted by Simi 60

Pretty obvious I'd reckon.

Whats not obvious to me is why both and why when the transducer is 6ft under?

No idea, mine are about 3’ under I think, maybe less, I only draw 5’ total.

The both I assume is because the aerated / turbulent water forms sort of a barrier that the beam won’t penetrate.
WWII I believe subs would try to get under a thermocline as I guess Sonar of the day wouldn’t penetrate that.

[Simi 60]

Reply back from koden
See what happens next time.

We think the cause of the problem is that the surface of the transducer moves away from the sea surface

or some bubbles are on the surface of the transducer.

Besides, CVS-126 has a function to cover the image from bubbles.

Could you try to set [Menu] => [Correct] => [Bubble time set] => [10 minutes]?

[Simi 60]

Ha,
Pissing down rain and thought I'd look for an answer again.
First result on Google is this thread.
Seems I'm the only guy in the world with this issue.
Oh well, lived with it for 6 years now.