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Old 03-08-2017, 12:07 AM   #21
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Originally Posted by fishbadger View Post
I'm not sure this is at all correct. At least not according to anybody I've talked to at Garmin. Bathy detail reportedly the same in G2, G2 HD and G2 Vision.

I have new Garmin gear and I'm very disappointed in bathymetric detail. 7 foot contours on the fishing charts vs. 1 foot contrours with Navionics.

Bummed.

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Most of those contour lines are computer generated and not based on actual bottom scans.

Just because they show more lines doesnt mean its any better or more accurate.
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Old 03-08-2017, 05:09 AM   #22
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Does the software update also update the maps or are they separate? I did the software update.
mapping updates are separate. you get 1 free map update in the first year of ownership
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Old 03-08-2017, 09:10 AM   #23
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Most of those contour lines are computer generated and not based on actual bottom scans.

Just because they show more lines doesnt mean its any better or more accurate.
Maybe so, but I've lots of experience fishing tight structure for groundfish in our region. That means critical bottom topography is critical. The Navionics maps have been 100% spot on throughout my range (all of Puget Sound, offshore WA coast, BC coast). The extra lines are actually correct. If you don't fish tight structure, or if all you do is troll general contour lines or drive around bass fishing, then the difference will be lost on you, and then the cartography with 1 foot contours vs. 7 foot contours will seem similar, and both will satisfy your needs.

So far Garmin's G2 maps are good enough to avoid hitting the ground, but not much good for much else, at least for me, in my region. I guess now I know why they have the QuickDraw function!

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Old 03-08-2017, 09:28 AM   #24
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I'd be interested in seeing what I would be buying if I stepped up to the HD or Vision downloads. I know that when I scroll over my fishing grounds on the Gulf of Mexico, there seems to be very little in the way of detail. I also notice that when I zoom out, detail is lost even further, making hard to see where you are going if you are used to driving by direction of bottom features. Example: if I want to drive towards a certain section of the 30 foot curve, I could pretty much do so by scrolling to that feature and hitting "go to" on my last plotter, from any zoom level. On the Garmin 7610, I noticed while practicing on it that you have to guess where that feature is and spend a lot of time moving around in a zoomed view just to find the features you want. Very frustrating. I'm not trying to bash Garmin either: I want this to work but the way they have it set up with the basic Blue Charts is not working. Based on what I am reading on here the upgrade cards are not worth it. Not sure if those comments are based on reality or people not knowing how to use the plotter. The Bluecharts HD card is $160 and the Vision card is $430: big chance to take with either if the bathymetry is not there. They both claim 1 foot contours.


Does anyone have pictures of what their bathymetry looks like with either of the upgraded charts? I am not looking for Quickdraw generated maps, just what's off the card.


Also: does quickdraw come on every GPSMAP 76 series head unit?
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Old 03-08-2017, 09:52 AM   #25
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Originally Posted by cj352 View Post
I'd be interested in seeing what I would be buying if I stepped up to the HD or Vision downloads. I know that when I scroll over my fishing grounds on the Gulf of Mexico, there seems to be very little in the way of detail. I also notice that when I zoom out, detail is lost even further, making hard to see where you are going if you are used to driving by direction of bottom features. Example: if I want to drive towards a certain section of the 30 foot curve, I could pretty much do so by scrolling to that feature and hitting "go to" on my last plotter, from any zoom level. On the Garmin 7610, I noticed while practicing on it that you have to guess where that feature is and spend a lot of time moving around in a zoomed view just to find the features you want. Very frustrating. I'm not trying to bash Garmin either: I want this to work but the way they have it set up with the basic Blue Charts is not working. Based on what I am reading on here the upgrade cards are not worth it. Not sure if those comments are based on reality or people not knowing how to use the plotter. The Bluecharts HD card is $160 and the Vision card is $430: big chance to take with either if the bathymetry is not there. They both claim 1 foot contours.


Does anyone have pictures of what their bathymetry looks like with either of the upgraded charts? I am not looking for Quickdraw generated maps, just what's off the card.


Also: does quickdraw come on every GPSMAP 76 series head unit?
If you email the Cartography dept regarding specific areas of interest, they can send you screenshots of the topography/imagery provided by the the accessory card mapping.

[email protected]
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Old 03-08-2017, 09:57 AM   #26
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Cj352

This was exactly what I experienced and it drove me nuts, like you said normal well known fishing areas where either non existent or where so far off that you couldn't distinguish those areas with out have the actual way point installed.
Even under the fishing chart it didn't matter wether you adjusted the chart detail from least to most it still was way off. Almost like they just scribbled lines all over. Before with my 3210 bluechart maps or navionics app when running to or from the canyon I could see spots coming across the 30/40 fathom line with out way point installed just by a glance at the screen. Also for me it was the way guys talk in my area if someone said " yea we are on them good on the small hill of masseys" you can't distinguish that at all , that's just one example but you see my point. So after I removed and sold my 3210s and purchased the 7610xsv's I went as far as buying another 3206 to mount in my electronics box just for the what to me is more accurate maps. Then I decided to just switch to simrad, I've had garmin on 3 boats over the course of 15 years and never had one issue, they always performed flawlessly I just hope simrad treats me as good
Like I said before when I called garmin about this issue and asked about the same 160$ "bluechart g2 HD" vs what's preloaded " bluechart g2 " card I was told there won't be any difference from what I already have
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Old 03-08-2017, 10:27 AM   #28
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Originally Posted by Seacraft25 View Post
Cj352

This was exactly what I experienced and it drove me nuts, like you said normal well known fishing areas where either non existent or where so far off that you couldn't distinguish those areas with out have the actual way point installed.
Even under the fishing chart it didn't matter wether you adjusted the chart detail from least to most it still was way off. Almost like they just scribbled lines all over. Before with my 3210 bluechart maps or navionics app when running to or from the canyon I could see spots coming across the 30/40 fathom line with out way point installed just by a glance at the screen. Also for me it was the way guys talk in my area if someone said " yea we are on them good on the small hill of masseys" you can't distinguish that at all , that's just one example but you see my point. So after I removed and sold my 3210s and purchased the 7610xsv's I went as far as buying another 3206 to mount in my electronics box just for the what to me is more accurate maps. Then I decided to just switch to simrad, I've had garmin on 3 boats over the course of 15 years and never had one issue, they always performed flawlessly I just hope simrad treats me as good
Like I said before when I called garmin about this issue and asked about the same 160$ "bluechart g2 HD" vs what's preloaded " bluechart g2 " card I was told there won't be any difference from what I already have


That's disappointing. I guess it's better to figure this out now before I go off buying more Garmin components. I'll trying emailing them and see what they send me and if it hasn't changed since you looked into it, I will most likely be going with SIMRAD or Lowrance. I saw a demo HDS-12 at Bass Pro right next to the 7612xsv yesterday and the difference in preloaded cartography was night and day, with Lowrance being the obvious winner. It looks like SIMRAD and Lowrance have preloaded 3D bathymetric shading overlaid on top of the depth charts. Pretty cool.
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Old 03-08-2017, 10:32 AM   #29
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Originally Posted by Yrral3215 View Post
You do not get any extra contour lines with the premium map cards. You get all kinds of other add-ons, but no extra contour lines.
wrong. that's one of the main features of the HD/HD vision cards
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Old 03-08-2017, 11:01 AM   #30
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Here is a comparison of the older G2 Charts versus the new G2 HD Charts. These screen shots are from the waters east of Miami. G2 first then G2 HD alternating there after. These screen shots are from my Garmin 7610 with G2 charts installed then we I insert my G2 HD SD card.

G2 .....



G2 HD Charts ......



G2



G2 HD



G2



G2 HD



GOM south of Pensacola and SE Mississippi Delta

G2



G2 HD



East of Cape Hatteras ....

G2



G2 HD



3 miles south of Key West

G2




G2 HD





As you can see there is a big difference between G2 and G2 HD contours.
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Old 03-08-2017, 11:09 AM   #31
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Bluewaterpirate thanks. That's actually exactly what I needed to see. That HD card doesn't look so bad. I might give that a shot. Seems like the negative feedback I read on here was either fixed by Garmin overtime or just incorrect, in my opinion any way. Thank you sir!
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Old 03-08-2017, 11:19 AM   #32
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Do you have an area you want to see? I have access to my boat later today.
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Old 03-08-2017, 11:29 AM   #33
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The northern middle grounds would be nice but to be honest I'm impressed enough with what you've shown. Its not 3D but good enough for what I do. I'm new to this website and all forums in general. Pretty cool I can just write a post and get help. Thanks.
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Old 03-08-2017, 11:44 AM   #34
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The northern middle grounds would be nice but to be honest I'm impressed enough with what you've shown. Its not 3D but good enough for what I do. I'm new to this website and all forums in general. Pretty cool I can just write a post and get help. Thanks.
Pm what area your looking for and I will see if I have a hd map for that area. I have several on sale and some more I am going to list if I can find the time.
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Old 03-08-2017, 12:20 PM   #35
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Pm what area your looking for and I will see if I have a hd map for that area. I have several on sale and some more I am going to list if I can find the time.
Block island?
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Old 03-08-2017, 12:42 PM   #36
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I'm not so sure there's any difference between G2 and G2 HD and G2 HD Vision in terms of bathymetric detail, AS LONG AS THE MAP UPDATE VERSION HAS THE SAME DATE. Of course a new HD would have better detail in some spots because it is a newer map update version. Trust me I'd love to be wrong, and I'd be first in line to buy a new HD map card if I were. I've been told by 3 different Garmin support guys (nice guys too!) that there's no difference as long as the map update date is identical.

So is there someone from Garmin who can go on the record for us here, or should we keep discussing the difference between our apples and oranges?

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Old 03-08-2017, 12:47 PM   #37
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By the way BWP I'm envious of the detail you have on those maps in your area. I wish my area in the PacNW was even close to the detail that you have there. Maybe with "future updates". . .

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Old 03-08-2017, 03:42 PM   #38
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Yep. I agree fishbadger. Here is the latest G2 Vision detail for Duntze Rock off of Tatoosh Island using Homeport. Left side is nav chart and right side is fishing chart. Contours are usually about 7 foot. OK for this rock, but not very helpful for pinpointing smaller stuff inside Puget Sound.
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Old 03-08-2017, 03:47 PM   #39
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cj 352 and fishbadger

CJ first here are some screen shots of the middle grounds G2 then G2 HD alternating ......

G2



G2 HD











Block Island

G2



G2 HD



More to come ....
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Old 03-08-2017, 03:56 PM   #40
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Here is cmor mapping florida middle grounds map from the website
https://www.cmormapping.com/order/middle-grounds
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