Will this get rid of the donut?.....Will it keep moving and show your heading at slow speeds?I saw where rickie said it would show heading, but not move if i read it correct.Are they out yet and anyonr have one?
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Will this get rid of the donut?.....Will it keep moving and show your heading at slow speeds?I saw where rickie said it would show heading, but not move if i read it correct.Are they out yet and anyonr have one?
The new AS GPS HS antenna will, indeed get rid of the "Donut"....with limitations....
The 1st thing to understand with this antenna is that "Heading" and "Course" are different....
"Heading" means which way the antenna is "pointed"...
"Course" means which way the antenna is "moving" ...
The AS GPS HS antenna casing has a mark on 1 edge indicating to mount the mark toward the front of the boat....
This gives the unit knowledge of which way (on the Earth's surface) the boat is "pointing" at all times....even stationary....
When the boat movement slows to below 0.6mph... the "boat shaped" icon will stop on the screen (just like the "donut" did....)
At this point, if the boat moves enough on the Earth's surface that the GPS recognizes a different lat & long coordinate...the "boat shaped" icon will "jump" to the new lat & lon on the screen...(this may be as little as 1-5 ft on the water depending on the accuracy of the GPS at the time)...
The "boat shaped" icon on the screen will continue to "point" in the direction the bow of the boat is "pointing"....Even if the "newly recognized lat & lon coordinate is in a different direction than the boat is "pointed"....
So...in effect ...the "boat shaped" icon could be "pointing" N while the icon is actually moving S on the screen...(boat drifting backwards on the water in this case)..
Clear as mud...??
http://store.humminbird.com/media/do...314784EN_B.pdf
Rickie
Rickie, so the only difference is that the icon will show the direction the boat is going even though it doesn't know where it's at? I don't see any help to slow trollers.
Your analogy is correct but I'll change 1 of your words to not confuse anyone...Quote:
Originally Posted by justinp61
so the only difference is that the icon will show the direction the boat is "pointing" even though it doesn't know where it's at?
It is yet to be determined if it will benefit slow trollers...I'll be getting 1 just to see for myself...
__________________________________________________ _________________________________
Slow trollers (like myself) need to understand that this antenna was not developed to appease slow trollers...
It is a necessary component of the new 360 imaging....and that is the antenna's sole purpose of engineering design...
It just "so happens" to eliminate the "Donut"...and "Donut" haters are trying to figure out if it will actually fix the problem the "Donut" creates for slow trollers..
Rickie
wow... i completely understand now:RoflQuote:
Originally Posted by rnvinc
Magnetic compass.
I believe it DOES know where it is within accuracy of the GPS. It MAY not update movment while the boat drifts those 1-5 feet though. The boat direction icon will always know where the bow of the boat is pointing.
If you are using the charts and slowly moving towards a target, I believe this will benefit a slow troller as the screen will not bounce around when in Heading Up mode. I currently have to keep my bow unit charts on North Up when slow trolling and sometimes confuse myself on whether I'm moving towards a waypoint or not. With this puck, I will at least know that the nose of the boat is pointed at the target.
I plan to get one as soon as Rickie gets his and says its worth the money.
X2Quote:
Originally Posted by Stymie
This is what I am thinking, hoping also!!
x3...................lol..............go rickie
Im i correct,that the difference between what this will do and what the lowrance does is that the humminbird will acually no witch way the boat is pionted,while the lowrance unit just kindof has a palse in the displayed reading giving the false inpression of accuacy?
So the long & short of it is they got rid of the donut and left us the donut Hole......Hope it works
Now you'll know which direction your boat is pointed.Quote:
Originally Posted by jaxsprat
Actually more likely, you'll know that you're pointed at that waypoint that you're traveling towards.Quote:
Originally Posted by justinp61
Digital magnetic compass. Good deal. Nice thing about a digital compass is that the heading is always present. I doesn't need to be "refreshed" to know where north is or what direction you are headed. Garmin has/had some digital magnetic compasses in their handhelds. Worked good.
The gps compass is accurate, is a true 360* compass, but must be refreshed, and, unlike magnetic compasses, it is not too affected by its environment. As long as you have gps signal, you have compass.
I noticed in the HB pdf that the digital compass has 1-2 degree accuracy. A target in 15 foot of water and 3 foot diameter is an easy target to locate at trolling speeds with this accuracy.
I have used the Hitachi H55 digital magnetic compass in projects. It had 2* accuracy, but at slow speeds and short distances, that is accurate.
I think Stymie's analogy here will possibly be the benefit to slow trollers....Quote:
Originally Posted by Stymie
When my "boat shaped" icon changes to the "Donut" below 0.6mph...the "Donut" does not just stop moving on the chart...
The "Donut" jumps in small increments on the map every 1-2 seconds as the boat moves on the water....
This is understandable as the boat has drifted enough distance on the water for the GPS receiver to see a different lat & lon coordinate from where it was ...then the unit updates the "Donut" icon position on the chart view to the newly recognized lat & lon coordinate...
With the AS GPS HS antenna, the "boat shaped" icon will still jump in small increments on the chart view every 1-2 seconds as the boat moves on the water....(just like the donut does)...
But also.... the AS GPS HS antenna will allow the unit to show on the chart view if my boat is pointed toward the "blue dot" waypoint, south of the "blue dot" waypoint, east of the "blue dot" waypoint, etc...
This feature of the "boat shaped" icon telling me which way my boat is "pointing" in relation to where the "blue dot" is on the chart should make it possible to realize which way I need to adjust my boat direction to "head" toward the "blue dot"...
So, what this means is....
The AS GPS HS antenna may not allow my unit to show a steady constant tracking line of the boat's path (like the Lowrance does)....It will allow to me know which way I should adjust my slow trolling path to reach my destination...that next "blue dot" waypoint on the chart view...
We will know more when I get this thing in my hands where I can test it...
(I can assure all that I will order 1 as soon as HB puts that "Add to Cart" button on the website....)
Rickie
If you really want to solve the issue... you will need a solid state compass like: Maretron : Marine Electronic Instruments
I finally bit the bullet last year and bought one of these along with their GPS200and could not be more happy. I use it with my Lowrance HDS Gen 1&2 system. Now if we could only have consistent GPS accuracy.