What is the meaning of each of the data boxes across the top of the image capture below...??
(Sorry guys...this one is kind of HB specific)...
Attachment 272694
Rickie
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What is the meaning of each of the data boxes across the top of the image capture below...??
(Sorry guys...this one is kind of HB specific)...
Attachment 272694
Rickie
I'm a lowrance man but got a good idea about 3 of them. The bearing box has me stumped
Cursor reading, Cursor is marking the top of the structure at 9.4 ft from surface in 13 FOW, :scratchhead...is it 102 ft from the boat at 293 degrees? Think that is right
Top of structure 9.r fow, 13 ft total depth, distance 102 from when tracking began (sonar turned on) then bearing being degree of travel on map from starting point when sonar began ( unit turned on)
Is that right?
Tom
The 9.4 curser is how many swear words you've said since turning on the unit TODAY!
Brett, you are a poor man's Bob Hope...:Rofl:Rofl:Rofl
Do you know bob hope brother? ................no hope
rickie,tell me if im wrong,but I believe that that using 293°,while returning to the waypiont would give the best accuracy ?Quote:
Originally Posted by rnvinc
293, magnetic compass bearing
While several of the answers are correct (or partially correct)...I will use slabbacks quote as the reference ....and then elaborate a little on kosmo's answer in a sec...
Attachment 272696Quote:
Originally Posted by slabbacks
Taking into consideration that the "active cursor position" is still "active".....:
At any point in the boat track after the cursor was "activated".....(regardless of distance traveled in the boat track)...
*The "Distance" data box indicates the direct "straight line" distance from the boat's present position on the water ...to the coordinates of the "active cursor position".....(we learned in Sonar quiz #8 that it doesn't matter where in the water column a waypoint is marked...the coordinates are the same for any pixel in that vertical row of pixels on the 2d image)...
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*The "Bearing" data box indicates the "straight line" bearing from the boat's present position on the water...to the coordinates of the "active cursor position"....(regardless of boat "heading"...ie..the direction the boat is pointing)...
Attachment 272697
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Now to eleaborate on kosmo's answer....
This is the same criteria the "GOTO" function uses ....(if the "Active Cursor Position" had actually been used to mark a waypoint at that indicated "Active Cursor Position"...Quote:
Originally Posted by kosmo
Rickie
I assumed that the small "t" next to the bearing indicator meant that it would be "true" rather than "magnetic"Quote:
Originally Posted by brettw
Right, or wrong?
Makes sense
Than if you had di only ,with cusor could you tell which side of boat object is on,i know you can with si by flipping it to si but just wandering about di and cusor
I'm pretty sure this is correct Vic...(although I've never checked this for myself...I never change this setting from default "True North")...Quote:
Originally Posted by vic n
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Attachment 272698
Rickie
I'm not sure I understand your question Gene...Quote:
Originally Posted by genec
Are you asking if left or right can be determined in a dedicated DI unit...??
Or are you asking if the "Active Cursor Position" can determine left or right in a DI image...??
Rickie
Rickie,i was asking on di,and went over object if you put cusor on object,could you then determine which side of boat it was on?
No...because DI is still 1 beam...and sonar does not know direction...it only knows time...Quote:
Originally Posted by genec
Activating the cursor on a DI image only assigns position as coordinates (lat, lon) to the GPS antenna position ...not the position (left, right, forward, aft)...of structure that is under the water...
Rickie