California Bass Fishing Forum - Reply to Topic
» Site Navigation
» Home
»
 > Search
 > FAQ
» Forum Search
» Insurance
Thread: Chart Speed effects on Side Imaging and Down Imaging Reply to Thread
Title:
  
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the California Bass Fishing Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in


Additional Options
Miscellaneous Options

Topic Review (Newest First)
10-31-2012 02:18 PM
DougV
Re: Chart Speed effects on Side Imaging and Down Imaging

Are you running just the SI Transducer or you running an additional transducer with Y Cable?

If single transducer you need to adjust to get clear water flow. If SI Works on plane then you probably need to raise transducer. Can you post a picture of the Transducer install?

10-31-2012 12:17 PM
mark poulson
Re: Chart Speed effects on Side Imaging and Down Imaging

Doug,
I have the 997 from six+ years ago.
Once I get on plane, I lose my conventional sonar signal, but my side imaging still reads fine.
Is there something I can do to get the sonar to work at higher speed, too?
Mark
09-22-2011 09:46 AM
BILLY
Re: Chart Speed effects on Side Imaging and Down Imaging

Thanks.
09-22-2011 12:21 AM
DougV
Re: Chart Speed effects on Side Imaging and Down Imaging

I recommend starting with matching the boat speed to Chart speed to keep the aspect ratio natural. Idle 4mph set chart speed to to 4.

09-21-2011 12:27 AM
BILLY
Re: Chart Speed effects on Side Imaging and Down Imaging

So, Are you saying if you run the boat say 4mph setting will be about 5?
05-17-2011 03:50 PM
DougV
Chart Speed effects on Side Imaging and Down Imaging

Here are some examples of the effects of not adjusting the Chart Speed to match the boat speed and how it can distort the data.

Chart Speed matching Boat Speed...see the details?



Now the Chart Speed increased and loss of resolution and stretching of data...



Same thing happens with Down Imaging...

Too Fast...



Still a little fast...



Just Right...



Now Switchfire 2D Sonar...

Matched to boat Speed...



Too Fast... (elongates returns)



Adjusting your Chart Speed will help you get your images just like the images are naturally positioned under the water. To fast will stretch the images and too slow will shrink the data. Using the Chart Speed function is probably the Most Important element in creating picture perfect images. I try to match or drop a 1 number below chart speed for higher resolution images if you want to stretch them a little to see more separation of details adjust 1 or 2 numbers above boat speed but don't crank it up it will make the images lose alot of the resolution to the images.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Powered by vBadvanced CMPS v3.2.3

All times are GMT -4. The time now is 12:01 AM.



Powered by vBulletin® Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL3
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.