What Transducer and Sounder Module Do You Recommend

[Opakapaka]

I need a flush mount thru-hull transducer. I'm fishing in Hawaii waters and I target deep-water snapper but enjoy fishing at the fads 4 tuna too. I want the best possible equipment. My first desire is to be able to consistently identify deep water snapper (1000 + feet), even when there's average algae bloom in the water column. I also need good performance in shallower waters, as shallow as 150 ft.
What Furuno equipment do you recommend? Can I utilize TWO transducers spaced apart on my 26 ft boat in order to achieve what I need?

Thanks for your time.

 

[Snips]

Opakapaka,
Over the years, many that fish in Hawaiian waters have tried flush mounted transducers and have not been happy with their performance. They have gone this direction because they often launch from the beach. Also most of these hulls have a very shallow draft which doesn't help. If you can use two transducers I would recommend using a flush mounted B-175HW just for running around and a pole mounted R-109LHW or R-509LHW to use for fishing. You can pair those transducers with either a FCV-295 or FCV-1150.

Snips

 

[Opakapaka]

Thanks.
You're suggesting Wide beams. Will that work to identify snapper at 2000 feet?

Regarding the MFD, I was leaning towards a TZTOUCH2. You like the FCV better?

Also, on my boat there is a manufacturer's pocket available to mount the ducer. You dont believe flush mounting a ducer in that location is a good idea?

I've read somehwere operating two transducers can cause interference. Is that true? If so, can I turn on/off one or the other ducer, depending on where I'm fishing?

 

[Snips]

Opakapaka,
The LF side side of the R-109 or R-509 is for fishing deep not the HF side. You could also consider going with a LM style.

If you are looking at the internal sounder of TZT2 you are fishing beyond it capabilities.

Operating two sounders at the same can cause interference but not a single sounder as both channels transmit at the same time.

As for pocket mounting, I would find somebody who is local to you with the same hull and has a pocketed mount transducer to see how well it works.

Snips

 

[Opakapaka]

The reason I ask about the Wide beam is that I was under the impression that LHW (wide) will lose effectiveness in deep water due to the power dissipating into the water column. I'm looking to see snapper at 2000ft. Also wanna be able to read fish in shallower water.

Does the wide feature cause loss of perfomance in 2000 ft?

 

[Snips]

Opakapaka,
Depth is frequency related.
Wide beam 200Khz transducers are probably good for fish detection down to 250ft.
The main reason I mentioned the B-175HW was it was a flush mount that would get you to and from the fishing grounds.

There are a few narrow beam 38 and 50Khz transducers available but they supposed to be tank mounted.

Sorry, they're not a lot of options out for what you are asking to do.

Snips

 

[Opakapaka]

I'm fully aware that depth is frequency related.

So, the CM111 or CM599 are not flush mountable? They're advertised as being able to be pocket mounted.

 

[Opakapaka]

There's a gazillion choices. Anyone else have any ideas?

 

[Snips]

Opakapaka,
The CM-111 and CM-599 are flush mounted. To date I know of a couple of vessels from Hawaii that had CM-599 only to replace from with R-509 because of turbulence issues.

Snips

 

[Opakapaka]

Thanks, Snips

Ill explore the R509. It may be easier to modify the trailer than to modify the fiberglass hull ;-) The width of the R509 would fit perfectly on the flat 0degree portion of the hull.

Why are people experiencing turbulence with the flush CM599? My sponsens on my cat hull are narrow and act like keels, always in the water unless I'm ripping it. It's a displacement hull. Might I have a different experience with my displacement cat hull?

 

[Opakapaka]

Snips, my man. Can you take a look at what I'm working with? Link to the Google photo album below. I tried attaching them to this message but exceeded the size limit.

I'm thinking those who were having problems with turbulence with the CM599 are using it with a 30ft or less monohull. Mine is a Glacier Bay catamaran with sponsens that nearly act like keels. The pictures depict what the very bottom of sponsens looks like. Theres about 2 inches on the bottom that might act just like a fairing block does. Might I not experience as much turbulence as the others, due to the shape of my hull?

Look forward to your opinion, if you can offer it. Thanks!
https://photos.app.goo.gl/8bixvAHpk2WBxb1Y9

 

[Snips]

Opakapaka,
With the added hull information you might be a candidate for the CM-111 or CM-599 if you can fit them.

Snips