Author Topic: Autochart Live  (Read 6564 times)

0 Members and 1 Guest are viewing this topic.

Offline 95Ranger

  • Newbie
  • *
  • Joined: Nov 2015
  • Location: DFW
  • Posts: 9
  • Unit(s): 717
Autochart Live
« on: February 01, 2016, 01:33:20 PM »
Which sonar beam is used to generate maps using Autochart Live? Is it the 2D sonar or DI or SI? If the water depth is 25 ft, the 2D sonar would be surveying a 25 ft circle on the lake bottom, with no way of knowing exactly where the actual depth changes are occuring. For instance, a hump could be anywhere within a 25 ft circle. So how does it make accurate contour plots with 1 ft levels if it does not accurately know where the humps and valleys are relative to the boat position?
95Ranger


Offline Bob B

  • Hero Member
  • *****
  • Joined: Oct 2010
  • Location: Creve Coeur, Il
  • Posts: 1568
  • Unit(s): 1197c si, 1198c si
  • Software: 6.310, 6.490
Re: Autochart Live
« Reply #1 on: February 01, 2016, 06:00:30 PM »
Pretty sure it uses the 200khz beam .... which would be 1/3 depth ..... No idea how the algorithm works.  A steep depth change shows as wider bottom return on the unit.  Approaching from more than one angle would probably help improve the map.
**Looking for the one that makes it all worthwhile**


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo

 

Related Topics

  Subject / Started by Replies Last post
3 Replies
14095 Views
Last post July 24, 2014, 02:17:24 PM
by Humminbird_Greg
3 Replies
17822 Views
Last post October 23, 2014, 04:31:19 PM
by jonshoreman
19 Replies
26511 Views
Last post July 09, 2015, 03:15:33 PM
by CamoHunter
4 Replies
11104 Views
Last post January 31, 2016, 03:30:28 PM
by rnvinc
6 Replies
7262 Views
Last post March 23, 2016, 12:00:59 AM
by rnvinc
2 Replies
8946 Views
Last post September 12, 2019, 05:39:17 AM
by danceswithbass
2 Replies
7037 Views
Last post April 18, 2020, 10:02:41 PM
by newkid4si
4 Replies
7822 Views
Last post April 28, 2020, 03:59:22 PM
by rnvinc


anything
SimplePortal 2.3.3 © 2008-2010, SimplePortal