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Dec 30th, 2023
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 Re: Graph Interpetation
[Re: Flippin-Out]
#12365781
07/31/17 02:35 PM
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Joined: Mar 2005
Posts: 861
Rog
Pro Angler
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Pro Angler
Joined: Mar 2005
Posts: 861 |
2D at the bow and Downscan at the transom are NOT looking at the same thing in the same perspective, so I never expect such an experiment to provide truly comparative views. The cones are looking down in different places many feet apart, so they aren't looking at the same thing! Read what Lowrance says about installation and operation..... Yeah but you can sit at the console or walk back there to get same perspective off the two transducers that are side by side. New units have downscan and sonar in same transducer. Looks like he has gen 3. Point is even if installed correctly, downscan will give a better idea of what's down there. 
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Re: Graph Interpetation
[Re: Big Kahuna Fishing]
#12366202
07/31/17 07:00 PM
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Joined: Nov 2008
Posts: 6,182
coachallentca
TFF Celebrity
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TFF Celebrity
Joined: Nov 2008
Posts: 6,182 |
Post this on BBC in there Lowrance forum.
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Re: Graph Interpetation
[Re: Big Kahuna Fishing]
#12366300
07/31/17 07:57 PM
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Joined: Jun 2011
Posts: 15,668
921 Phoenix
TFF Guru
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TFF Guru
Joined: Jun 2011
Posts: 15,668 |
Sorry to ask noobe question, but the last graph I had told me depth of water and had pictures of little fish on the screen. So can some one tell me what the pictures of the graph are displaying? I think its fish from the bottom attacking bait fish near the surface.   I would say fish streaking to the top. The wider the line and color will tell you what it is. The thicker lines that are yellow to green is most likely bass. The thinner lines that are red to purple are either sand bass or big shad. You should be fishing this with a LFT ring fry on a C-Rig lol just my two cents
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Re: Graph Interpetation
[Re: scruboak]
#12366309
07/31/17 08:01 PM
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Joined: Jun 2011
Posts: 15,668
921 Phoenix
TFF Guru
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TFF Guru
Joined: Jun 2011
Posts: 15,668 |
those should be full arches if the transducer was set right if you were moving but probably sandbass.
You won't have arches if they are swimming up like that, nor have I ever had arches when they are swimming. My graph usually looks like those in top post when I fine fish feeding. I know my graph is set right. IMHO This time of year I am looking for a main lake point that look exactly like that post to fish between noon and 5 in the summer.
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Re: Graph Interpetation
[Re: Big Kahuna Fishing]
#12366524
07/31/17 09:51 PM
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Joined: Jul 2017
Posts: 27
ilikebigguts
Outdoorsman
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Outdoorsman
Joined: Jul 2017
Posts: 27 |
saw this the other day, its a long video from a seminar at lake fork, but at around the 27 minute mark the guy speaking gives an outstanding discussion on graph interpretation, and he shows a lot of screen shot examples from lowrance sonar so maybe this can help. https://youtu.be/ey9il34mXqw
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Re: Graph Interpetation
[Re: Big Kahuna Fishing]
#12366566
07/31/17 10:12 PM
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Joined: Nov 2008
Posts: 7,616
361V
TFF Celebrity
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TFF Celebrity
Joined: Nov 2008
Posts: 7,616 |
Reel a spoon up fast from the bottom? Might tell you what they were.
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Re: Graph Interpetation
[Re: Big Kahuna Fishing]
#12366889
08/01/17 01:42 AM
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Joined: Aug 2015
Posts: 3,952
Pintail711
TFF Team Angler
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TFF Team Angler
Joined: Aug 2015
Posts: 3,952 |
you don't set a transducer.. all a transducer does is convert one form of energy into another. I don't know about lowrance but on birds you can adjust your chart speed, that usually helps too.
Last edited by Pintail711; 08/01/17 01:45 AM.
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Re: Graph Interpetation
[Re: Big Kahuna Fishing]
#12367054
08/01/17 03:29 AM
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Joined: Mar 2008
Posts: 9,597
Evan O'Brien
TFF Celebrity
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TFF Celebrity
Joined: Mar 2008
Posts: 9,597 |
Could be transducer placement, but it looks like air bubbles coming up from the bottom to me. It's usually a tell tale sign since the are all streaking the same way. I've seen it before but shouldn't happen all the time. Double check the with down scan as mentioned. It could be a freak deal, but if the problem persists on your next trip check the transducer placement. https://doctorsonar.com/blogs/educational-articles/113480580-understanding-sonar-3-19-2016
REALTOR. Residential/Lake/Farm&Ranch/Hunting Properties
Evan O'Brien - Regal Realtors - texaslakesandland@gmail.com (214)642-6921
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Re: Graph Interpetation
[Re: scruboak]
#12367287
08/01/17 12:27 PM
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Joined: Aug 2009
Posts: 11,126
9094
TFF Guru
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TFF Guru
Joined: Aug 2009
Posts: 11,126 |
those should be full arches if the transducer was set right if you were moving but probably sandbass.
His transducer is fine. Those fish are moving up, probably feeding. Arches are formed by boat speed, screen speed and angle of fish. If the fish are moving upward or downward you will not get good arches.
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Re: Graph Interpetation
[Re: Evan O'Brien]
#12367357
08/01/17 01:15 PM
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Joined: Jan 2007
Posts: 320
Klinger N Ok
Angler
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Angler
Joined: Jan 2007
Posts: 320 |
Could be transducer placement, but it looks like air bubbles coming up from the bottom to me. It's usually a tell tale sign since the are all streaking the same way. I've seen it before but shouldn't happen all the time. Double check the with down scan as mentioned. It could be a freak deal, but if the problem persists on your next trip check the transducer placement. https://doctorsonar.com/blogs/educational-articles/113480580-understanding-sonar-3-19-2016 That's what I suspected also. Looks like air/gas bubbles rising off the bottom.
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Re: Graph Interpetation
[Re: Big Kahuna Fishing]
#12367383
08/01/17 01:28 PM
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Joined: Jul 2014
Posts: 4,340
Bobby Milam
TFF Team Angler
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TFF Team Angler
Joined: Jul 2014
Posts: 4,340 |
This thread is kind of eye opening as to how many people don't know what their finders are showing.
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Re: Graph Interpetation
[Re: 9094]
#12367397
08/01/17 01:35 PM
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Joined: Mar 2015
Posts: 5,413
TCK73
TFF Celebrity
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TFF Celebrity
Joined: Mar 2015
Posts: 5,413 |
those should be full arches if the transducer was set right if you were moving but probably sandbass.
His transducer is fine. Those fish are moving up, probably feeding. Arches are formed by boat speed, screen speed and angle of fish. If the fish are moving upward or downward you will not get good arches. This^^^^^ The Op never stated if he was moving or sitting still, it looks like he was sitting still and fish were streaking up. I see this frequently with Stripers pushing shad to the surface. I had a good example of this before Photobucket did its thing. This pic does has some fish streaking in it, not as much as the OP's post. The second pic you can see the slab moving up and down as well.  
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Re: Graph Interpetation
[Re: Bobby Milam]
#12367539
08/01/17 02:44 PM
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Joined: Dec 2008
Posts: 16,137
grout-scout
TFF Guru
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TFF Guru
Joined: Dec 2008
Posts: 16,137 |
This thread is kind of eye opening as to how many people don't know what their finders are showing. This question is a tricky one though. I'd really have to lean towards the air bubbles because the pattern is just too consistent. I believe if those long angle streaks were fish, that they would not be in such perfect lines. They'd be more of the up & down moving streaks like some of the pics posted show.
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Re: Graph Interpetation
[Re: Evan O'Brien]
#12367546
08/01/17 02:49 PM
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Joined: Feb 2011
Posts: 2,005
sprigsss
Extreme Angler
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Extreme Angler
Joined: Feb 2011
Posts: 2,005 |
Could be transducer placement, but it looks like air bubbles coming up from the bottom to me. It's usually a tell tale sign since the are all streaking the same way. I've seen it before but shouldn't happen all the time. Double check the with down scan as mentioned. It could be a freak deal, but if the problem persists on your next trip check the transducer placement. https://doctorsonar.com/blogs/educational-articles/113480580-understanding-sonar-3-19-2016 Fished what we thought was a huge school of active fish on Amistad for an hour before we noticed the bubbles reaching the surface. No bubbles, no streaks. Never felt so dumb before.
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Re: Graph Interpetation
[Re: TCK73]
#12368044
08/01/17 08:48 PM
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Joined: Mar 2017
Posts: 262
Buckshotbuddy
Angler
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Angler
Joined: Mar 2017
Posts: 262 |
those should be full arches if the transducer was set right if you were moving but probably sandbass.
His transducer is fine. Those fish are moving up, probably feeding. Arches are formed by boat speed, screen speed and angle of fish. If the fish are moving upward or downward you will not get good arches. This^^^^^ The Op never stated if he was moving or sitting still, it looks like he was sitting still and fish were streaking up. I see this frequently with Stripers pushing shad to the surface. I had a good example of this before Photobucket did its thing. This pic does has some fish streaking in it, not as much as the OP's post. The second pic you can see the slab moving up and down as well. Did you pull any of those out?
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