Author Topic: HumViewer Accuracy  (Read 3882 times)

0 Members and 1 Guest are viewing this topic.

Offline Fullstrut

  • Newbie
  • *
  • Joined: Jun 2013
  • Location: Wisconsin
  • Posts: 1
  • Unit(s): 1198c Si
  • Software: 6.640
HumViewer Accuracy
« on: October 09, 2013, 06:23:24 PM »
I have a question about the accuracy HumViewer. I have old scan I was messing around with and decided to mark some of the objects. I marked a object in SI both. I then went through the scan in DI and ended up marking the same object again. I noticed this when I viewed the 2d track. The waypoints were separated a bit. What is the preferred way of marking waypoints in HV, Down or Side?  Is one more accurate that the other ? Either one would have taken me there but is one going to be more dead on that the other ?


Offline xSilmarilSx

  • Full Member
  • ***
  • Joined: Dec 2010
  • Location: Canada
  • Posts: 208
  • Unit(s): HB 798ci SI HD - HB 778c Quad Beam
  • Software: 6.250 - 5.320
  • Accessories: TG W, NMEA Cable, Ethernet
Re: HumViewer Accuracy
« Reply #1 on: October 10, 2013, 02:48:39 AM »
The only accurate way to do it is with the 2D sonar.

Since in SI/DI, you can't easily determine the real distance between the structure and the boat.
50 feet in Si range, is calculated from the transducer to the structure, in linear fashion, like a laser
beam. Not parallel to the ground. So the real distance can be 45-48-40 feet, the deeper, the more
prone to error your measurement would be!


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo

 

Related Topics

  Subject / Started by Replies Last post
7 Replies
3903 Views
Last post December 02, 2009, 01:26:51 PM
by keizerh
9 Replies
5530 Views
Last post October 13, 2010, 07:33:18 PM
by Kenosha
17 Replies
10153 Views
Last post December 23, 2010, 09:23:09 AM
by sonar2000
3 Replies
2195 Views
Last post April 29, 2011, 03:15:17 AM
by xSilmarilSx
4 Replies
1875 Views
Last post March 02, 2015, 03:50:15 PM
by Trytoofish
6 Replies
2628 Views
Last post March 17, 2017, 12:16:03 PM
by fshndude
3 Replies
1688 Views
Last post April 05, 2017, 11:36:20 PM
by newkid4si
13 Replies
3531 Views
Last post August 14, 2018, 11:31:39 AM
by TroyBoy30


SimplePortal 2.3.3 © 2008-2010, SimplePortal