Navionics charts

[Chanchan168]

Hi there, I have a Simrad go7 which has had both a hard reset and software updates. I also have an in date and up to date charts on my micro sd.

For some reason I have a shaded out charts on my plotter screen that forbids me from seeing anything on the right of the screen. I’ve attached a pic for you to see, but has anyone ever seen this before and if so, is it a plotter issue or a chart issue?

Thanks in advance

[Pikey Dave]

Originally Posted by Chanchan168

Hi there, I have a Simrad go7 which has had both a hard reset and software updates. I also have an in date and up to date charts on my micro sd.

For some reason I have a shaded out charts on my plotter screen that forbids me from seeing anything on the right of the screen. I’ve attached a pic for you to see, but has anyone ever seen this before and if so, is it a plotter issue or a chart issue?

Thanks in advanceAttachment 134527

What happens if you zoom out/in?

[Fenlander]

I think PD is on the track here.

I get this with the Garmin charts on my small plotter, the handheld and when they are on the PC.

As you change the detail setting the detail of adj charts isn't always the same until the detail settings are at the higher end... or you zoom in more when they change to showing the same.

Here at Low detail setting the southern chart area is all but blank compared to the northern side.

[Fenlander]

But when I change the detail setting to Medium they show the same.

[Chanchan168]

Doesn’t make a difference whether or not I zoom in or out. The shading stays. I don’t think it’s anything to do with detail as surely it would be across all of the chart and not a straight line down one half.

Hope that makes sense

[Chanchan168]

Doesn’t change Pd. It’s not a detail issue as The line down the middle is perfectly straight. I can see everything to the left of the pic, but shaded red and pixilated on the right, regardless whether I zoom in or out

[Pikey Dave]

Originally Posted by Chanchan168

Doesn’t change Pd. It’s not a detail issue as The line down the middle is perfectly straight. I can see everything to the left of the pic, but shaded red and pixilated on the right, regardless whether I zoom in or out

If you scroll around, does the shaded area move around with the chart or does it stay in the same place on the screen? I’m trying to determine whether it’s chart related or screen related. If you zoomed out so that you could see the whole of the area covered by the chart, is the shaded area still taking up half of the screen or does it reduce in size? Which chart is it, 28XL?

[Pikey Dave]

Originally Posted by Pikey Dave

If you scroll around, does the shaded area move around with the chart or does it stay in the same place on the screen? I’m trying to determine whether it’s chart related or screen related. If you zoomed out so that you could see the whole of the area covered by the chart, is the shaded area still taking up half of the screen or does it reduce in size? Which chart is it, 28XL?

Also, have you updated the firmware on the unit? There was a Lowrance update last year to address Navionics display issues. Lowrance/Simrad, same kit.

[willk]

Hmmm. What happens in other pages - Instruments or Steer or whatever? How about split page view? Looks as though half the screen is playing up - try a few combo pages and see what happens.

[Fenlander]

>>> don’t think it’s anything to do with detail as surely it would be across all of the chart and not a straight line down one half.

If you look again at my two images above again they show that this can happen along the line of a chart file boundary at different detail settings.

And to add to this idea... my Garmin charts are on my PC for my handheld and due to its smallish memory you have to select the charts you want on the PC and then copy to the unit each time you go to a different area. The charts are separated in areas which seem smaller than the way paper charts are split up so you often have to select several for a days cruising.

The thing is see the image below of Jersey and the yellow vertical line is the dividing line between two chart files. That line looks exactly the same place as your boundary between the correct and incorrect display so assuming Garmin and Navionics share the same base chart and assuming you are on a high detail setting excluding that as a factor then it seems your plotter isn't reading the right hand chart file which might be corrupted.

It's just a thought.

[jeffstevens763@g]

have you tried clearing the cursor

[Chanchan168]

Originally Posted by Pikey Dave

If you scroll around, does the shaded area move around with the chart or does it stay in the same place on the screen? I’m trying to determine whether it’s chart related or screen related. If you zoomed out so that you could see the whole of the area covered by the chart, is the shaded area still taking up half of the screen or does it reduce in size? Which chart is it, 28XL?

Hi, no it moves when I scroll along, so I don’t think it’s a chart issue. When I zoom in it stays shaded but blocks out key details like rocks where I have a boat passage. It’s the small chart which is the 5g556 rather than the larger 28xl.

[Chanchan168]

Originally Posted by Pikey Dave

Also, have you updated the firmware on the unit? There was a Lowrance update last year to address Navionics display issues. Lowrance/Simrad, same kit.

All updates to both charts and firmware of unit carried out and a hard reset done.

[Chanchan168]

Originally Posted by willk

Hmmm. What happens in other pages - Instruments or Steer or whatever? How about split page view? Looks as though half the screen is playing up - try a few combo pages and see what happens.

Same on combo or single screen. Spoke to local Simrad rep and he reckons it could be a shading issue in settings, which has been suggested on here.

Going to try it and he’s happy to talk me through.

[Chanchan168]

Originally Posted by Fenlander

>>> don’t think it’s anything to do with detail as surely it would be across all of the chart and not a straight line down one half.

If you look again at my two images above again they show that this can happen along the line of a chart file boundary at different detail settings.

And to add to this idea... my Garmin charts are on my PC for my handheld and due to its smallish memory you have to select the charts you want on the PC and then copy to the unit each time you go to a different area. The charts are separated in areas which seem smaller than the way paper charts are split up so you often have to select several for a days cruising.

The thing is see the image below of Jersey and the yellow vertical line is the dividing line between two chart files. That line looks exactly the same place as your boundary between the correct and incorrect display so assuming Garmin and Navionics share the same base chart and assuming you are on a high detail setting excluding that as a factor then it seems your plotter isn't reading the right hand chart file which might be corrupted.

It's just a thought.

That makes perfect sense and the line, as you say, is in exactly the same place.

I’ll see what the rep says.

Thanks all. Much appreciated