texasfishingforum.com logo
Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
TraeMartin, Power-Pole CS, T-Rigger, JoeGoes, EcKo
119150 Registered Users
Top Posters(All Time)
hopalong 120,585
TexDawg 119,524
Bigbob_FTW 94,903
John175☮ 85,892
Pilothawk 83,264
Bob Davis 81,523
Mark Perry 72,297
Derek 🐝 68,312
JDavis7873 67,416
Forum Statistics
Forums59
Topics1,037,860
Posts13,935,731
Members144,150
Most Online39,925
Dec 30th, 2023
Print Thread
Dumb(?) side imaging questions #13748953 10/30/20 02:55 AM
Joined: Mar 2018
Posts: 574
B
Bassman_78 Offline OP
Pro Angler
OP Offline
Pro Angler
B
Joined: Mar 2018
Posts: 574
Can anyone clear this stuff up for me? I’m new to side imaging and still have questions. You have the feet to each side of the transducer on the bottom of the graph, and you have the water column depth to each side. Where I’m having trouble connecting dots is, if you’re in 25 ft of water, the water column/floor is going to be at the 25 to each side. So how do you determine how far to either side a piece of cover is from the boat if less than 25 ft away? If the floor is at 25, and something is only 10 ft to the right or left, how does that look? I know when you see it on both sides, it’s more so under the boat, or somewhat leaning more to one side or the other depending on the return strength from each side.

Re: Dumb(?) side imaging questions [Re: Bassman_78] #13749037 10/30/20 04:36 AM
Joined: Dec 2008
Posts: 16,029
G
grout-scout Online Sleepy
TFF Guru
Online Sleepy
TFF Guru
G
Joined: Dec 2008
Posts: 16,029
I’ll be honest, I didn’t read the question real thoroughly. When your scanning 100’ out to the side and if you’re in 25’ depth of water, then you’re only really shooting out 75’ to the side. Something only 10’ to the side would appear under you, split on both screens usually. Hopefully I read the question right.

Re: Dumb(?) side imaging questions [Re: Bassman_78] #13749201 10/30/20 01:25 PM
Joined: Oct 2019
Posts: 544
T
TomRom Online Content
Pro Angler
Online Content
Pro Angler
T
Joined: Oct 2019
Posts: 544
There are a lot of good videos on you tube that are available that can help you regardless of the unit or brand you have. I still watch some over again just for fun and or a refresher. I have Garmin's and their site has a bunch of how to videos to help me learn my units. Im sure Lowrance and Hummingbird do as well. As far as seeing something from the side, you have to take the depth of the water column away from the sidescan distance setting. The easiest thing I do is to pause the sonar and put a waypoint on it. Even if you don't want to put a way point, you probably can pause the sonar and put a pin on it which will measure the distance. Also if you see it on your side imaging its behind the boat.

Re: Dumb(?) side imaging questions [Re: Bassman_78] #13749209 10/30/20 01:31 PM
Joined: Oct 2017
Posts: 2,441
J
JimBridger Offline
Extreme Angler
Offline
Extreme Angler
J
Joined: Oct 2017
Posts: 2,441
I’ll 2nd the you tube videos. They are a lot easier to learn from than just reading the manual supplied by the manufacturer.

Last edited by Pappybear; 10/30/20 01:31 PM.

All that is necessary for the triumph of evil is that good men do nothing. Edmund Burke
Re: Dumb(?) side imaging questions [Re: Bassman_78] #13749245 10/30/20 01:50 PM
Joined: Mar 2018
Posts: 574
B
Bassman_78 Offline OP
Pro Angler
OP Offline
Pro Angler
B
Joined: Mar 2018
Posts: 574
Knew it was dumb lol. It makes perfect sense now with subtracting the water column depth from the distance.Thanks for clearing that up fellas 👍

Re: Dumb(?) side imaging questions [Re: grout-scout] #13749266 10/30/20 02:07 PM
Joined: Nov 2010
Posts: 5,090
W
Wayne P. Online Content
TFF Celebrity
Online Content
TFF Celebrity
W
Joined: Nov 2010
Posts: 5,090
Originally Posted by grout-scout
I’ll be honest, I didn’t read the question real thoroughly. When your scanning 100’ out to the side and if you’re in 25’ depth of water, then you’re only really shooting out 75’ to the side. Something only 10’ to the side would appear under you, split on both screens usually. Hopefully I read the question right.


Something 10' to the side would be displayed at about 35' since the water column is included in the view.

One more thing, stuff displayed on SI is not horizontal distance, it is SLANT RANGE distance from the transducer.

Last edited by Wayne P.; 10/30/20 02:10 PM.

Helix 12 CHIRP MEGA SI+ GPS G3N and G4N, 1198c SI, SOLIX 10 SI G3,
Helix 8 MEGA SI+ GPS G4N, SOLIX 12 SI and G3, MEGA 360, MEGA LIVE TL, RC-1
Re: Dumb(?) side imaging questions [Re: Bassman_78] #13750030 10/31/20 01:41 AM
Joined: Dec 2008
Posts: 16,029
G
grout-scout Online Sleepy
TFF Guru
Online Sleepy
TFF Guru
G
Joined: Dec 2008
Posts: 16,029
Yeah what Wayne said. grin

But I think my Lowrance reads differently, definitely not near as accurate as his images show. Wayne would it make any difference using 800 vs 455, going old school here.

Re: Dumb(?) side imaging questions [Re: Bassman_78] #13750309 10/31/20 11:55 AM
Joined: Sep 2008
Posts: 120,586
hopalong Online Confused
Pescador Loco
Online Confused
Pescador Loco
Joined: Sep 2008
Posts: 120,586
why are y'all saying to add or subtract the water column?


https://www.humminbird.com/learn/imaging/side-imaging


" Hop, set the hook"!
hopalong 99,999
TexDawg 99,999
FJB! not my president by a long shot!

lake fork FISHERMANS COVE MARINA/reservations - 903 474 7479
Re: Dumb(?) side imaging questions [Re: grout-scout] #13750401 10/31/20 01:07 PM
Joined: Nov 2010
Posts: 5,090
W
Wayne P. Online Content
TFF Celebrity
Online Content
TFF Celebrity
W
Joined: Nov 2010
Posts: 5,090
Originally Posted by grout-scout
Yeah what Wayne said. grin

But I think my Lowrance reads differently, definitely not near as accurate as his images show. Wayne would it make any difference using 800 vs 455, going old school here.


Side Imaging, Side Scan, SideVu, SideVision is all the same and works the same.

Generally, the frequency determines how much range you can get and the quality of the images.
Just like 2D sonar, the lower the frequency, the more depth capability you get and the less detail you get.


Helix 12 CHIRP MEGA SI+ GPS G3N and G4N, 1198c SI, SOLIX 10 SI G3,
Helix 8 MEGA SI+ GPS G4N, SOLIX 12 SI and G3, MEGA 360, MEGA LIVE TL, RC-1
Re: Dumb(?) side imaging questions [Re: hopalong] #13750408 10/31/20 01:11 PM
Joined: Nov 2010
Posts: 5,090
W
Wayne P. Online Content
TFF Celebrity
Online Content
TFF Celebrity
W
Joined: Nov 2010
Posts: 5,090
Originally Posted by hopalong
why are y'all saying to add or subtract the water column?


https://www.humminbird.com/learn/imaging/side-imaging


Common sense, since part of the image is the water column, if you want to figure out how far a subject is from the transducer, you have to delete the DEPTH to get the RANGE. That is what the folded illustration in the link is doing.

With Humminbirds, the closest you can get visually to distance (eliminating calculation), is turning off the water column (Contour Mode) so only the bottom is displayed. That is a technique where bottom stuff is more important than suspended stuff (SAR is an example).

[Linked Image]

Last edited by Wayne P.; 10/31/20 01:18 PM.

Helix 12 CHIRP MEGA SI+ GPS G3N and G4N, 1198c SI, SOLIX 10 SI G3,
Helix 8 MEGA SI+ GPS G4N, SOLIX 12 SI and G3, MEGA 360, MEGA LIVE TL, RC-1
Re: Dumb(?) side imaging questions [Re: Bassman_78] #13750734 10/31/20 06:11 PM
Joined: Dec 2008
Posts: 16,029
G
grout-scout Online Sleepy
TFF Guru
Online Sleepy
TFF Guru
G
Joined: Dec 2008
Posts: 16,029
Wayne, my Lowrance doesn’t remove the water column like your bird does. What would something look like on your SI if it is directly straight down?

For example, on the center bridge pylon above, how would it show up on your screen? I imagine you have a picture for reference, if you can understand what I’m even asking. Not sure I’m wording it clearly.

[Linked Image]

Re: Dumb(?) side imaging questions [Re: grout-scout] #13750804 10/31/20 07:49 PM
Joined: Nov 2010
Posts: 5,090
W
Wayne P. Online Content
TFF Celebrity
Online Content
TFF Celebrity
W
Joined: Nov 2010
Posts: 5,090
Originally Posted by grout-scout
Wayne, my Lowrance doesn’t remove the water column like your bird does. What would something look like on your SI if it is directly straight down?

For example, on the center bridge pylon above, how would it show up on your screen? I imagine you have a picture for reference, if you can understand what I’m even asking. Not sure I’m wording it clearly.

[Linked Image]


Yes I understand your question, just don't have a similar example.

Anything in the water column below the transducer would not be displayed since there is no water column. Don't have any images of tall stuff in the water column. Playing back Simulator that has a couple of rock piles, it looks like with with Contour Mode on and off.

[Linked Image]

[Linked Image]


Helix 12 CHIRP MEGA SI+ GPS G3N and G4N, 1198c SI, SOLIX 10 SI G3,
Helix 8 MEGA SI+ GPS G4N, SOLIX 12 SI and G3, MEGA 360, MEGA LIVE TL, RC-1
Re: Dumb(?) side imaging questions [Re: Bassman_78] #13750965 10/31/20 09:15 PM
Joined: Dec 2008
Posts: 16,029
G
grout-scout Online Sleepy
TFF Guru
Online Sleepy
TFF Guru
G
Joined: Dec 2008
Posts: 16,029
thumb just made me curious after seeing the water column feature off. Pretty cool feature to show more of the screen.

Re: Dumb(?) side imaging questions [Re: Bassman_78] #13751753 11/01/20 12:32 PM
Joined: Oct 2017
Posts: 2,441
J
JimBridger Offline
Extreme Angler
Offline
Extreme Angler
J
Joined: Oct 2017
Posts: 2,441
That hummingbird video is a good one Hop! thumb

Last edited by Pappybear; 11/01/20 12:34 PM.

All that is necessary for the triumph of evil is that good men do nothing. Edmund Burke
Previous Thread
Index
Next Thread

© 1998-2022 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide
Powered by UBB.threads™ PHP Forum Software 7.7.3