Depth Reading

[Anonymous]

Hi,

I have (2) RDP-149 displays, GPS receiver, Sounder Box and I think the Airmar R199 2kW dual frequency transducer. I notice I lose the depth display value when moving at different speeds in shallow water. I'm guessing that it may be due to air bubbles under the hull or something?? Is there a way to get my current system to accurately display the depth or another product that will work effectively while the boat is moving? Some of the water I navigate has moving sand bars and not a clearly defined channel and I depend on the depth reading to know if the depth changes suddenly..... The average water depth I'm looking at is somewhere between 10' to 3'....

Thanks,

Steve

 

[Melville]

Steve-
You are most likely correct that air or turbulence of some kind is affecting your readings in shallow water. In addition a 2kW sounder is not the best solution for “skinny water” readings. My best suggestion is to consider adding a dedicated low power digital system. Our RD33 with a smart sensor would give you reliable readings in water as shallow as 2’. To better understand this low power solution here is a link to the product page:
http://www.furunousa.com/Products/Produ ... nstruments
Your local Furuno dealer will be able to assist you in a decision.

 

[Anonymous]

Melville,

Thank you, I will look at this unit, also one other question, is there any type of fairing I can build on the hull where the transducer is mounted that would smooth the water out?

Thanks,

Steve

 

[Melville]

Steve-
Is this the transducer you have?
http://www.airmartechnology.com/2009/pr ... d=55&manf=

If it is, I am not aware of anything you could do other than finding a better spot in the hull. Talk to the boat manufacturer or dealer. They might have had success on some other boats and locations.

 

[Anonymous]

Yes, that is the one..... okay, I'm considering adding the smaller depth finder with smart sensor for shallow water navigation..... as recommended by you earlier..... thanks