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Member
Posts: 11
| Need some help guys. Have owned plenty of glass rigs but this is only my second metal rig. Bought a Lund 2025 LE with Merc 250 Verado on her butt. The graph that came onboard is a Lowrance LCX-111 hd. Was professionally mounted but my problem is that when i get her up on plane and get to about 30 mph and about 1/4 to 1/2 trim, i lose bottom. I'm assuming because of all the turbulance under the transducer. Things i have done to try and resolve:
Changed sensitivity to manual and tried several intervals including max
Changed Surface Clarity & Noise Rejection to every possible combination
Moved transducer down to it's lowest point on bracket
Moved transducer and bracket over and down so that transducer was hanging
below transom of boat
For those of you big lund owners, can you lend a new lund owner a helping/guiding hand on what else i can do to maintain bottom reading at higher speeds. It's my eyes on the water with alot of stump flats that are lookin to rip off a lower unit.
thnx for any and all help
Bergy |
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Member
Posts: 2393
Location: Waukesha Wisconsin | I'll try to help the best I can but I need more data so I can visualize the situation.
Do you ever get the signal back once you are full throttle?
Where on the transom is the transducer located?
Have you put ping speed to 100% (keep it there IMHO)
Look under the boat when it is on the trailer. Where is the transducer in relationship to rivets? |
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| Are you running the latest updated software? |
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Member
Posts: 2393
Location: Waukesha Wisconsin | Actually,
Let's stay away from updating software. At least for awhile. Let's separate possible problems.
mrmodog, you suggesting that his version has issues with loosing signal?
Some have experienced frustration after updating. |
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Member
Posts: 219
| Yes, I have the 111HD and was having some problems with hi speed bottom readings. (I have a glassed in ducer from Ranger) After updating the software, I noticed an improvement. I have also heard of some people experiencing problems with the software updates, fortunately, I was not one of them. |
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New User
Posts: 4
| The problem is most likely due to rivets causing turbulence. What I did was move the transducer back off the transom about 1". How I achieved this was by putting a small piece of hard plastic, I had 1/2" thick pieces in the shop that I sandwiched together that were about 3"x6". I would think that if you bought a plastic cutting board from WallyWorld and cut it to the dimensions that you wanted it would be the easiest. Screw your newly fashioned 3"x6"x1" plastic piece to the back of your boat flush with the bottom. Now take a heavy file or rass bar and file the plastic so that there is a smooth transition on the bottom of the boat to the plastic. Finally screw on your transducer.
With this arrangement I was able to get a full speed reading off of my rivited boat. It is my belief that the extra inch gave the water enough time to reconverge after the rivets and create smooth laminar flow for the trasducer.
Hopefully this is clear enough to understand, and is the most likely cause of your problem. Let me know if you need clarification. |
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Member
Posts: 11
| Sunshine,
I do not ever get signal back until i back 'er down off of plane.
Transducer is mounted roughly half way between motor and right edge of boat.
Ping speed is set to 100%.
Have not checked the relation to rivets. Will check on that tonight. Good thought.
I've updated the software to latest release. Can a person go back in software revisions?
Read in one of the other posts about mounting it so transducer skimmer is half below boat and half above. I can try this as well.
thanks for your help
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Member
Posts: 11
| Plunker,
This sounds like a logical idea. Really appreciate your input. I'll give this a try and let ya know. Do ya think the software update could have caused this also??? |
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Member
Posts: 1656
| This may be a dumb question, but what is your sensitivy set at? have you tried lowering it? If it's too high it will cause you to lose bottom at high speeds. |
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New User
Posts: 4
| One other thing that using a 3"x6" piece does is that if you need to move the transducer left or right you can do so without drilling a bunch of extra holes in your boat. It gives you more options to play around with. |
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Member
Posts: 11
| Actually, Jayman, I've only messed with raising it and not lowering it. My understanding was that raising the sensitivity would help maintain bottom contact. Maybe i'm wrong. It's worth a shot though.
Thnx for the suggestion. Oh, BTW, enjoy reading your posts and comments. Like to watch somebody else stir the hornets nest every once in a while besides me.  |
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Member
Posts: 11
| Makes sense.
What does everybody else have theirs set to for running high speeds as far as:
Surface Clarity - Low, Medium, High
Noise Rejection - Low, Medium, High
Sensitivity - Auto, or Manual and what %
thnx guys for the help
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Member
Posts: 1656
| Bergy, I was a big fan of the dual freq x-ducers, because one could keep the wider cone 50 hz ducer pegged at 100 % and never miss a beat, and keep the 200 khz narrower beam turned down to the maximum level you could to main tina bottom contact. Running on green bay over deep water 75'+ I find you need to have the sensitivity turned down to about 80% otherwise it would lose depth.
But I've had about 8 too many dual freq x-ducers break on me and gave up.
I run the 200 khz and change the sensitivity now when I want to get maximum performance at trolling speeds. |
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Member
Posts: 11
| thnx. will give that a shot over the weekend. Was going to try tonight but with gusts over 50 mph.....ain't happenin!!!  |
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Member
Posts: 86
| If you lose the bottom at high speed I would lower the transducer a 1/2 inch and see if this helps. You say you are losing the bottom reading, do you lose the digital depth or does the entire screen freeze? There was one software version that had this problem and was corrected with an updated version. I am using version 2.3 and it works well. |
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| Check and see if you are using version 1.7. Version 1.7 lost the bottom as you entered deeper water. I tried the new version and it loses bottom sometimes in shallow water with emerging weeds. It was fine in deeper water or hard bottom shallow water. I went back to 1.6 which works great under all conditions. |
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Member
Posts: 11
| Well guys, i'm back. Have been workin lots of OT and just now getting back on water. It's a shame. Here's what I've tried to this date:
Moved transducer all over the place
Put block of wood between transducer and transom to push out further from turbulent water
Replaced transducer and cable
Upgraded to latest software version 2.1.0
Messed with following settings on graph:
ping speed to 100%
Sensitivity low to high to everywhere in between
Manual depth range
Performed soft reset & hard reset on unit
It's about ready to sprout fins and go for a swim
Help??? |
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Member
Posts: 1040
Location: Stevens Point, WI | Can you post a picture of your transducer location? Also, the software version 2.1 is not the most up to date. They now have a 2.3 version. |
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Member
Posts: 219
| FYI, Version 2.1 is the latest for the 111HD. (2.3 is for the 113HD) |
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Member
Posts: 1040
Location: Stevens Point, WI | mrmodog - 8/14/2008 10:59 AM
FYI, Version 2.1 is the latest for the 111HD. (2.3 is for the 113HD)
Yeah, my bad, I was thinking the 113. |
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Member
Posts: 11
| i was searching one of the other posts and found these pics of another lund. It has the same exact mounting of transducer, angle, placement, and whole nine yards. Here is the link to the pics:
http://walleye.outdoorsfirst.com/board/forums/thread-view.asp?tid=1...
Any other ideas while i put the old transducer and cable back in? Have owned alot of lowrance units and have not had this prob before. Not real fond of combo graph/gps units because of little probs like this. Had individual units before with no issues.
Edited by Bergy 8/14/2008 1:34 PM
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Member
Posts: 538
| Bergy,
What does the previous owner have to say about it? Was he running the unit successfully before you got it? If you live in the Milwauke area (I am in Hartland) I have a 111HD that works great and you could use it to verify if the cpu is the problem.
Just a thought.
Jim O |
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Member
Posts: 11
| Jim,
Bought from Marine Dealership in Illinois and stated everything was good. It was used for one year as demo boat by sponsered pro before I purchased.
Really appreciate the offer on trying yours for troubleshooting, but, unfortunately i'm in KC, Missouri. What kind of rig is yours mounted on? |
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Member
Posts: 538
| It is glassed in the bottom of my 620. I know that is not an option for you, but I am a big fan of glassed in ducers. I have had it on my last three boats and find it a good program. I have heard all the "not as good as hanging it on the back" discussions, but, with all the power of the units today and the reliablililty, I love it.
Yea, KC is a stretch from here. I hope you get it worked out.
Take care,
Jim O |
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