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What my bottom machine looks LIKE!! <---UPDATED

Old 07-02-2012, 02:47 PM
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Talking What my bottom machine looks LIKE!! <---UPDATED

I have a lot of people asking me how to find hard bottom VS sand, and different questions about my set up. Here is the run down.
Furuno Navnet VX1 10.4 with DFF1 sounding unit M260 transducer

Look at the screen... Left side is my bottom discrimination, really shows the bottom and under the bottom line. I can really see whats going on, on top of the bottom line on the left, as well as see my tails under the bottom line. On the right I set my machine up at 50htz for shallow water and 200htz in deeper water when I am fishing the rolls.

As you can see on the left hand side of the screen I am seeing a very small portion of the bottom, it really zooms in the important stuff. I do the same with the right hand side as well. I place my range at 10ft, and shift down until the bottom line is right in the middle of my screen. That allows me to see any rocks, ledges, fish, and last but not least the tails. The thicker the tails the better the bottom.

I love my bottom line white because the fish show up better. The red blobs of fish really stand out against the white, as well as the greens.. If I roll over something huge as in piles of fish I get white blobs..
I really hope this helps you getting your machine tuned.. I will snap some more photos in deeper water this week showing what I am looking at/for while hunting ARS.

If you have any questions please ask.. I do my best to answer public and PM's.
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Last edited by grouperkng; 07-15-2012 at 01:54 PM.
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Old 07-02-2012, 02:52 PM
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Now look at the bottom 3-4 photos how that white just takes up the entire bottom of the screen.. that is exaggerated a bit because I was shallow, but if you ever see the BOTTOM of the BOTTOM line blow up white like that FISH THAT SHIZIT..

The first photo also shows a very strong bottom echo which is also exaggerated because of how shallow I was. It shows clearly what is hard VS what is soft.
Look at the photos through the middle, you see a few fish spikes? ok now look under those fish spikes.. you will see the bottom line (WHITE) under that line what do you see? TAILS running down to the bottom of the screen.. So when I say TAILS under the bottom line that is what I am referring to.
29.8ft second photo.. Look hard at the tails. On the RIGHT split screen look at the left and right side of it. What do you see? This is what I see.. A sand bar! Softer tails in the middle and harder bottom on each end. That is why I took that photo, on either side of that bar is good bottom, with the fish marks in one of the other photos.
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Old 07-02-2012, 02:57 PM
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Photo #4 shows good hard bottom, with a small show. Look at the tails! HARD! THICK! RED! Now the right split screen was in AUTO mode with the "FISHING" option selected. The reason I run it on AUTO during my run out is because I get way too much clutter if I am in manual mode while powered up. I can't tune it out I tried every setting.
Once I see something and mark it in my GPS I flip the switch to manual and really zoom into the bottom and check it out. If it looks that good while on AUTO it will look 1000x better when in manual dialed in correctly.
Are you still with me??
Top of the bottom line and under the bottom line. Those are the two things I want you to focus on with these photos...
When I get back in from tomorrows trip I am going to update this thread with more photos in deeper water zoomed in so you can see exactly what I see and I will take shots of what I am fishing on. Then I will explain why I chose to fish there and take a few photos of the actual fish off the spot
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Old 07-02-2012, 03:54 PM
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Photo #3 again... look at the left split side. That is the bottom discrimination. Its only showing me the bottom 4ft, you can also change that setting to bottom lock, bottom zoom ect. Lots of settings to play with on the furuno's and zoom's on the splits. I will sometimes just split the screen and run 50 on one side and 200 on the other so I can see the rolls well.
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Old 07-03-2012, 08:07 AM
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good info! What exactly do the tails represent? holes in the bottom?

I am going to snap a few photos of my Ray screen next time I am out and post to see what you think....
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Old 07-03-2012, 06:11 PM
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Nope, the tails are showing hard bottom.. as I understand it the ping can't pass through the bottom there for it gives the bottom echo "tails" The thicker the tails the harder the bottom.

I have more photos from todays trip we got our red groupers and headed home.. Tough day fishing today boy.. it was hard
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Old 07-03-2012, 07:29 PM
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Interesting.....learning......
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Old 07-04-2012, 12:23 PM
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Good read!
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Old 07-04-2012, 12:54 PM
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thanks i'm intersested as well.
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Old 07-04-2012, 05:09 PM
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Still slammed photos on my pc,will upload shortly
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Old 07-06-2012, 08:34 PM
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May have to hire you for a day. Thanks for the info!
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Old 07-07-2012, 05:06 PM
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Good stuff! I reckon that's a B260 you're using, right?
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Old 07-07-2012, 07:10 PM
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I switched to the bottom discrimination on my vx2 and what a difference. I wish i would have taken some pictures of a ledge i have, the amounts of fish stacked up. I love being able to actually see the fish and not just the waves up and down on my screen.
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Old 07-09-2012, 06:23 AM
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cool pics man but I gotta ask. Is it just a typo or are you actually using the 50kHz for shallow and 200kHz for deeper water. I realize you are grouper fishing in moderately shallow water so that's why I was seeking clarification.

Any time we fish we use the 200kHz for shallow water (up to about 350) and the 50kHz for deep stuff (350-2000+) b/c of the narrower beamwidth of the 50.

Just wondering b/c if you are actually using the 50kHZ for shallower stuff then I may try my splitscreen and look a little harder at the 50kHz side when we are bottom fishin. I'm not above learnin more about electronics any chance I get.
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Old 07-11-2012, 11:13 AM
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Originally Posted by mstyle8517 View Post
Good stuff! I reckon that's a B260 you're using, right?
yeah B260 duh Wrong key
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Old 07-11-2012, 11:15 AM
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Originally Posted by 85diver View Post
cool pics man but I gotta ask. Is it just a typo or are you actually using the 50kHz for shallow and 200kHz for deeper water. I realize you are grouper fishing in moderately shallow water so that's why I was seeking clarification.

Any time we fish we use the 200kHz for shallow water (up to about 350) and the 50kHz for deep stuff (350-2000+) b/c of the narrower beamwidth of the 50.

Just wondering b/c if you are actually using the 50kHZ for shallower stuff then I may try my splitscreen and look a little harder at the 50kHz side when we are bottom fishin. I'm not above learnin more about electronics any chance I get.
50 in shallow... when I say shallow I mean 100ft and closer. 100ft of water is a 30+ mile run for me. Most of my fishing is inside 75ft.
I think on the screen it says 50 somewhere. I run split right side is 50 with the range set at 10 and shift to move the bottom line to the middle or lower quarter of the screen so I can see tails, then I use bottom lock, or bottom discrim on the left. That allows me to really see whats going on

Having the two next to each other you can compair wher you are looking at to see if it's actually hard, and if the show is real or just bait.
I still have photos to upload, I just got finished with the mother load of trips, and I am in recovery mode
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Old 07-15-2012, 01:07 PM
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Upload already! Waiting to get my learn on thanks!
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Old 07-15-2012, 01:18 PM
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Lol sorry been stupid busy, I took more photos let me dig them out and upload
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Old 07-15-2012, 01:31 PM
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more photos different shows.
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Old 07-15-2012, 01:38 PM
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52.3ft photo or the last photo shows what? Look hard at the right hand zoomed in side. Look at the tails on the left side. The difference between hard bottom and sand are the tails. Look at the long tails under the white bottom on the right side. Look at the white tails dropping down on the left. Great bottom, good show you want to fish this!

Now lets look at the 2 photos in the 89ft range. This is cheese bottom fishing trash piles (bait piles) Second photo from the bottom really shows a nice clean photo of what I am looking for and what I am fishing on. Again the left side is zoomed and the right side is not. You can clearly see the pot hole on the right hand size of the screen.. Look for that dip, or "roll". Notice the nice show? yeah FISH THAT...
Back to the 89 ft range again, tons of bait, just tons... and what follows the bait? FISH... good job stay with me here. The bait is holding on hard bottom.. It is cheese bottom. Watch the tails look how they are not crazy but they are there.. that is showing me good bottom, actually it is showing me good bottom at the bottom of a sand bar. The piles of bait and fish showing are/were grouper. We got our limit of reds, a few gags and a king fish off that pile.

I was just snapping away after we got our fish. I wanted you to see what we were parked on and what the machine will look like when its set up.

More next week when I get some photos of chunky bottom
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