Morning all,

I ordered this unit to install on my console. I will be putting the transducer on my jack plate and have a y-cable for the high speed transducer.

I have two questions.....not necessarily related.

Is anyone here running this setup,and,do you have any major problems with it?

Has anyone installed a NEMA cable to the outboard to pick up motor info? How did this work for you? I'm running a 200 Optimax.

Thanks in advance for any information you may be willing to share.

I've run the Y Cable and shoot thru Transducer for many years and love it.

The NMEA Bridge allows data from the NMEA 2K network to be displayed on your Humminbird.

There are quite a few caveats to running a NMEA2K connection. There are a few threads over on Bass Boat Central in the Humminbird forum regarding this. The biggest limitation is that HB doesn't pipe in their own GPS to the NMEA screens so you will not get speed info unless you have a NMEA2K GPS antenna.
I will have both a 998 and a 788 at the console and both will have the NMEA screens so I can go back and forth with maps and motor data between the units. I will be installing a Garmin NMEA 2K GPS antenna along with the HB Ethernet switch and the NMEA2K Interface module.
More to follow....

Thanks Doug for your timely reply. I've watched just about all of your videos. I'm really looking forward to my new toys.

Thank you Rickmb also. I am very interested in finding out what you learn regarding the NEMA2K info

Which model of Shoot Thru do you use?
Do you have a picture of where you mount it in your Skeeter?

I don't have my Ethernet switch in yet (on back order).
So for now I have my 958 at the bow connected to the 788 at the console and the 798 at the bow connected to the 998 at the console.
At first the 958 and the 998 wouldn't share their transducers with the 700 series.
I updated the software in both and it worked!
It will be a couple of weeks before I get to the NMEA setup but I'll post results and pictures.

I use the XP 9 20 to Shoot Thru the Hull

That looks to be the rear area of the bilge, correct?
BTW, no comparison between SI on a 798 vs 998. Bigger really is better. With the 798 we used it mostly for locating structure. Today I got to use the 998 to target individual fish.
I was running full screen SI and running the map on the 788 and would mark them as we cruised down the bank. Then circle back and use my 798 and 958 up front to troll to the right spots.
Did notice I have a noise line on the left side towards the surface on the SI. 998 and 798 are sharing the transducer and it appears on both. This wasn't there when I was just running the 798. Its using the same transducer plugged into a Y cable with an extra temp sensor. Any thoughts on what could be causing this?

Yes the Right side of the Image is the Transom of the Boat.

But don't guess the best location...it's best to pre-test before installation:

How to Install Shoot-Thru (Epoxy In Hull) Transducer:

First: It is recommended to test the location prior to installation. Hull construction can have effects on getting good readings and it's best to find the best location. Air Pockets, Areas that Glass Matts Overlap, Delamination of Hull can effect the sonar performance. The best wasy is to disable automatic bilge pump temporarily and add a couple inches of water to the hull. Next build a small sand bag using a Ziploc bag. Place transducer in hull and using sand bag hold it down to find the best location for installation. Normally the closer to the rear of the boat and center of the boat the higher speed the sonar will stay locked on. Make sure the location is away from strakes underneath as these will cause aerated or turbulated water underneath and disrupt the clean water flow accross the bottom of the hull which can effect sonar readings.

Second: Mark the location of the best readings and drain the water and allow hull to dry. Hull must be dry for epoxy to adhere and set-up.

Third: I like to sand or smooth out area of hull the transducer is mounted so it's flat and smooth surface.

Fourth: Using Plumber's Putty or Play Do build a small dam around the Area the transducer will installed about an 1" wider than transducer to keep epoxy from flowing during installation.

Fifth: Use Slow Cure Epoxy - I recommend the epoxy that comes with the transducer direct from Humminbird. Slow Cure Epoxy stays cooler than fast cure. DO NOT use silicone or any other material than epoxy. Silicone can absorb sonar waves and creates alot of issues. Mix thoroughly until consist color. Avoid whipping while mixing to reduce creating air bubbles in the epoxy. The less air bubbles the better the final results and improved sonar readings.

Sixth: I like to apply a thin layer of epoxy on the transducer, I also like to apply a thin layer pressed into the bottom of the dam to squeeze out any potential air bubbles between epoxy and hull. Fill the rest of the dam with remaining epoxy.

Seventh: Installation of transducer. As you push transducer into the epoxy start 90° from foward and push and slowly turn the quarter turn. This will helps squeeze out air bubbles under the transducer.

Eighth: Using Sandbag from step one place on top of transducer to hold it in place. And allow the epoxy to cure for a minimum of 24 hours.

Ninth: Remove Sandbag and Plumbers Putty. Your Transducer is now installed and ready to use.

Tenth: Test Transducer in the Water to make sure you have good sonar readings. If not you may have air the epoxy and may need to repeat procedure to get good sonar readings.

Example of 2D Shoot Thru Transducer on my Skeeter FX20 (Transom to the right side)

Thanks Doug, appreciate the photo and the tips. I had previously read your tips on this but I wanted the best starting spot to start testing since I have a Skeeter as well.
Any ideas on the other issue I'm having?

Post a picture of the "noise line". I would guess it is not noise, but recorded sonar echos of either disturbed water or of part of your boat.

I will post as soon as I can get a pic.

I have ran the Y cable to thru hull transducers on several boats and never had a problem, I would throw the epoxy away that they come with and buy some good 2 part epoxy.

Here is a picture of the noise I'm getting. Same in either Normal mode or Simulation mode. It also appears on the 798 I have networked.
This noise was not present when I had the transducer connected to the 798.

Rick, you have three sources of echos. What you see displayed is not noise or interference. It is recorded echoes which the unit is supposed to do.
On the right side the unit is recording disturbed water flow off the hull bottom possibly with air mixed in.
On the left side you have the same thing, just more of it because the boat keel is deeper in the water than the hull to the right.
Additionally you have solid object echos (thin sharper lines)on the left side usually seen with a jackplate mounted transducer where the inside of the jackplate is reflecting sonar pulses.
I would guess your SI transducer is on the right side of a jackplate or you have some other vertical surface that is reflecting the sonar pulses.

Additionally the 798 screen is smaller so that is not as noticeable. It is also more pronounced at shorter SI range settings and less pronounced at long SI range settings.

This is the common occurance of the installation as I described.

If you see it on Simulator, that means Doug recorded it that way.