I recently bought a new Wide area cartridge, replacing an old Superwide, When displaying any chart off the new cartridge, the plotter crashes every few seconds. I also have a Local cartridge of a neighboring area, which works fine. The really wierd thing is that if I call up the new charts on my second (networked) plotter, the second one (displying the chart) crashes, NOT the one the chart is plugged in to. So I don't think it is a problem with the cartridge or the interface, more likely a format incompatability or memory problem??
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You can update the maps using either Garmin or other third party maps. The accuracy will depend on how old the mapping data was that is used to create the map. So you want to find out if the map in that area is recently updated. You may also find that a regional map may show the details in some areas where a larger map won't.
To upgrade using Garmin you just go to garmins website
You may find the map update is free or you may update for a fee or get a lifetime update subscription. The gps is hooked up through the usb cable and will download and instal the updates. It's painless (sort of ;-]) and quick.
n the system setup, under “UNITS” I set
BEARING to “MAG” (magnetic). This will cause the unit to display course /
bearing information in relation to the Magnetic North and match magnetic
compass readings. It is not the same as True North! One has to be careful with
this setting. There are a number of areas where the earth's magnetic field is
locally disturbed, sometimes very significantly. Your GPS may not account for
it.-again, under “UNITS” I set “METRIC”.
Map updates are free for units which are recently sold with the older maps and the new maps have been published, ie you just bought a unit in 2009 which still had 2008 maps on it after the 2009 maps had been released. Rather than recall all the units from the store shelves, they offer free updates on the mapping software. Continually updating the maps on 18 month old units is not free, there is an update charge. What is free from Garmin is the unit's software. Hope this clarifies your assumption.
The problem is that your maps are out of date. This can happen pretty quickly in growing areas. The problem is that it is quite expensive to purchase new maps for your device and mostly cheaper to purchase a newer device on sale. If you are handy and don't mind risking your device you can search on the web and find ways to put free software that uses free maps from sources like openstreetmap.org
I think you have a C- Map card (black colour)clean the contacts with a contactcleaner if it not works try the card somewhere else
The C-Map card have problems that they work for a while and than stops inside the card a some memorychips and they losing contact
If both plotter works but they have no comunikation
RESET the RL 70 AND L760
This is how it works
press the powerbutton when you have picture press the menu bottom
than systemsetup and than four seconds the menu bottom.
Do this on both plotter normaly after this it works again
It depends on what model you have. Most chartplotters require a chip with regional chart data. Most Lowrance models use Navionics charts. If you have a chip in the GPS, go to the map screen and press the "menu" key. Somewhere in the map setup menu will be a field where you can specify which chart to display.
For example a Navionics gold chart may cover the entire east coast, but it is broken down into a few sub regions. If you are boating in New England you would select the sub region labeled Northeast. Some of the earlier models didn't name the regions, they used model number for each region such as "XL904G". In that case your best bet is to try each one until you can view the charts in your area. Zoom in to 1/2 mile scale to make sure you can see charts.
If you have done all that and still can't see the chart details, there is also a setting in the map setup menu that allows you to set the level of detail. Make sure it is set to normal, more, or most. If you see a declutter setting on the setup menu, try setting it to off.
I did exactly what you wish to do a couple of years ago. It was a 5 minute job, cut out the same except the new unit needs a little more space behind and it was a plug for plug swap. Works great and swaps data between the matching chart plotter to give chart overlay on the radar Richard
There is a feature in these chartplotters called "Plotter Mode" that is often misunderstood and causes the exact problem you describe.
Press menu.....chart setup.....and scroll to the bottom until you see Plotter Mode in the list of options. It should be set in the OFF position.
If you have more than one display networked onboard check the setting in each one invividually.
What Plotter Mode does is allows the chartplotter system to access range scales not supported on the chart. It is not normally used for map-based navigation but more so for chartless electronic plotting (it can display routes, waypoints and track-recorder breadcrumbs.) open-ocean cruising, or for ultra-precise GPS operations (like a precision anchor drop, finding a very specific location etc. When plotter mode is on you can zoom in to a very, very small working area. The indicator it is enable is the cross-hatch background on the screen, the lack of map information, and the NO CHART DATA watermark on the screen.