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| Has one used the Lake Master WI Chip on the Madison chain, version 3?
Put the SD card into my H-bird unit and was very disappointed that Mendota, Monona, Waubesa were only every 3 feet. On their webpage these lakes are listed as HD and surveyed by lake Master, so I was expecting 1 foot contours...anyone else run into this on version 1, 2 or 3?
Every other lake that was listed as HD and surveyed by lake master had 1 foot contours, so this is very puzzling. |
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Posts: 1220
| Like all the chips out there, it appears to me that #3 Series of the Wisconsin chip (which is what I have in my Birds) has lakes where the survey is nothing short of magnificent and lakes where the whole #*^@ thing is blank and it says, "NO SURVEY AVAILABLE." If you are on the 3-Lakes Chain, for example, and you leave Planting Ground to go back to the really nice new ramp on Town Line, you leave a lake that is wonderfully marked and travel in to one that is blank. I also fished Namekagen last week and felt the markings were less than what I would expect. Without really knowing, my guess is that they just do some lakes a lot better than the ones they either have yet to do or to do better. For most of where I go, however, I totally love the chip and what I am able to do with it customizing where I want to fish, adjusting the lake levels and highlighting the shallow areas....nobody's perfect! |
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Posts: 416
Location: Madtown, WI | Yeah, I have version 2 and it's all 3' contours. I don't have a huge gps screen (lowrance) so I actually prefer 3' over the 1', don't need reading glasses to see what depth you're at. I have the navionics chip too and have to say the Lakemaster version is way more accurate, at least for Waubesa. I briefly had a Hot Spots chip, that's all I'll say about that. |
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Posts: 50
Location: Hobart, Indiana | I bought a Lakemaster for Minnesota and was very pleased with the way it showed 1' contours. I have a few Navionics chips and very unpleased with them. Sometimes it 5' contours and i'm off of my location by a great deal. The map says I'm on a 25' bowl but the depthfinder shows 6'. I see this as a big problem when I'm trying to fish a break or follow a contour. It even shows me launching in the land and going through the land when I'm clearly in the water. Was wondering if anybody else was having problems like this? I called Navionics and they said I had to adjust my time to the time zone were I'm fishing. I really cant see this being the problem. I told him that with the Lakemaster I don't had any problems its only your chips. He said that it highly unlikely that all the places I fish are like that. When we got to Minnesota I tried both chips and the Lakemaster was right on and the Navionics was completely off on the four lakes we fished. Any suggestions besides buying a Hummingbird? I have a Lowrance 37c. Thanks
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Posts: 1
| Hi Ruger,
I work for Navionics So happy to chime in. What they are talking about is a map offset. Sometimes the Lowrance plotters, especially less modern plotters are off a touch based in the gps functionality and how their base map is set up. Common occurrence in south America especially.
My questions are: did you buy a chart in the last year? Did you do a freshest data update? Also if you would be so kind as to post a lat/long I would love to check it out. Anywhere we have one foot contours is actual surveys we have done so should not be off like that. I'd love to look into it. We actually have done more recent surveys and sourcing than Lakemaster do if they are on and we are off, somethig is amiss. We actually added 1000 new lakes to MN this year with one for contours! Been saving them up 
Regarding the WI lakes, we also added another 100 roughly in the last two years. I'll check on that for you and repost later today |
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| Correct me if I'm wrong, but in WI (probably elsewhere too) lakes that have contours on the maps but weren't mapped by the chip company are noting more than digitized DNR maps. So, however far off these maps are is how far off they will be on the chips - many of these were completed in the 1950-1970s with some being more accurate than others and some are completely off in areas of the lake. Only time on the water will tell you this.
For the Lakemaster and 1' contours, it's possible they mapped it themselves but don't have it in 1' contours to keep it from getting impossible to read, especially on deep lakes. For example, Big Green was mapped but doesn't show in 1' contours (on my chip) and I wouldn't want it to b/c there's areas that would be nothing but a solid black line of 1' contours stacked on top of each other - impossible to read.
sc
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Location: Eastern Ontario | For the lake I live on in eastern Ontario Navionics uses an OMNR map from 1969 that was for determining water volumes and not for navigation or fishing. I have been making my own map using Dr.Depth but having fished the lake for 30 years I have a pretty good map in my head. |
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| scmuskies - 9/21/2012 11:30 AM
For the Lakemaster and 1' contours, it's possible they mapped it themselves but don't have it in 1' contours to keep it from getting impossible to read, especially on deep lakes. For example, Big Green was mapped but doesn't show in 1' contours (on my chip) and I wouldn't want it to b/c there's areas that would be nothing but a solid black line of 1' contours stacked on top of each other - impossible to read.
sc
I'm not blaming you, but I don't buy the whole, "impossible to read" claim. Lake of the woods where Lake master has surveyed is in 1 foot contours...that lake gets to 200+ and the structure is far more complex. Waubesa's basin is mostly ~25fow, that is pretty shallow relative to other lakes that do have 1 foot contours. Most of the metro lakes in the Twin Cities have 1 foot contours and those can be deeper and have far more structure variation than the bowls of monona, waubesa and mendota.
It's kinda false advertisement when most of the lakes that are surveyed and in "HD" are 1 foot contours, then three lakes by a couple hundred thousand people they choose to only do 1 foot contours? I'd like to know what they define as HD... |
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Posts: 183
| Navionics has 2 of the 3 in 1 ft contours here is a link to the list http://www.navionics.com/high-definition-lakes
http://www.navionics.com/waubesa
http://www.navionics.com/mendota
Edited by kirth 9/27/2012 7:08 AM
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