Platinum+ Large on SD / microSD Card from Nautic Way Maritime Bookshop

Introduction

The Navionics Platinum+ Large digital marine chart on an SD or microSD card is electronic charting designed for compatible marine GPS systems and chartplotters. It combines detailed Navionics cartography with advanced visualization and analysis features, including high-resolution underwater relief, satellite imagery, aerial photography and 3D views, depending on the reference, geographical area and capabilities of the chartplotter being used.

The term Large refers to an extended geographical coverage category. It does not automatically mean that the chart covers the entire world: each Platinum+ Large reference has its own specific geographical coverage. Choosing a digital marine chart should therefore always start with the exact reference, the intended sailing area and the model of GPS or chartplotter.

For coastal sailors, cruising yachtsmen, anglers using bathymetric information or navigators travelling through several regions, Platinum+ Large provides a rich digital representation of the covered areas.

What is a Navionics Platinum+ Large marine chart?

Navionics Platinum+ is Navionics' premium digital charting range for compatible chartplotters. It includes the main data available with Navionics+ and adds advanced chart display features. Garmin distinguishes detailed nautical charts, SonarChart HD bathymetry, chart updates, Dock-to-Dock routing, SonarChart Live and Community Edits, while Platinum+ adds features such as high-resolution shaded relief, satellite imagery, aerial photography and 3D views.

The chart is supplied on an SD or microSD card depending on the reference and compatible system. It is designed to be used directly in a navigation system that accepts this type of electronic chart.

It is important not to confuse a Platinum+ chart on microSD with a navigation application designed for a smartphone or tablet. Compatibility depends on the marine GPS or chartplotter, its model, generation, software version and the card format supported by the equipment.

What does “Large” mean in Navionics Platinum+?

Within the Navionics range, Regular and Large mainly refer to geographical coverage categories. Large generally provides broader geographical coverage than a local or Regular coverage, but the exact extent depends on the reference.

A Platinum+ Large chart can therefore be particularly suitable for sailors who are not limited to a single coastal area and want broader coverage on the same chart.

For example, one reference may cover a large coastline, several countries or multiple sailing areas, while another Large reference may correspond to a completely different geographical region. It is therefore essential to check the exact reference and geographical coverage before using a chart.

Detailed charting for marine navigation

Platinum+ provides detailed nautical charting with a wide range of information useful for navigation: coastlines, depths, soundings, bathymetric contours, ports, marinas, navigation aids, hazards, wrecks and other chart elements depending on the covered area.

This wealth of data makes digital charting useful at different stages of navigation:

• route planning before departure;

• coastal navigation;

• approaching a port or marina;

• identifying potential anchorage areas;

• analysing bathymetry;

• recreational boating across several areas;

• planning a fishing trip;

• exploring a new sailing area.

The exact presentation and availability of data depend on the chartplotter, its software and the capabilities provided by the specific chart reference.

SonarChart HD and bathymetric data

One of the key elements of the Navionics ecosystem is SonarChart HD, which provides high-definition bathymetry in covered areas.

Depth contours and bathymetric information help sailors better understand the shape of the seabed. For fishing, this type of representation can also help identify changes in depth, slope breaks and certain underwater structures.

On compatible equipment, SonarChart Live can display or create bathymetric information in real time using sonar data recorded by the vessel's sounder. Availability depends on the equipment and configuration being used.

High-resolution underwater relief

One of the main differences between Navionics+ and Platinum+ is the range of premium chart display features.

Platinum+ provides high-resolution shaded underwater relief. This visual representation makes changes in depth easier to interpret and provides a more intuitive view of underwater terrain.

This feature can be particularly useful for:

• fishing and identifying underwater structures;

• studying an area before sailing;

• understanding underwater terrain around a coastline;

• analysing shallow-water areas;

• planning a route in an unfamiliar region.

Shaded relief is an additional visualization tool and should not be interpreted independently of hydrographic information and other nautical sources.

Satellite imagery, aerial photography and 3D views

Platinum+ also adds visual features that are not provided in the same way with Navionics+.

Depending on the product and compatible equipment, Platinum+ may provide high-resolution satellite imagery, aerial photography and 3D views.

These features can provide useful additional information when studying a coastline, marina, bay or anchorage area.

For example, before arriving in an unfamiliar region, the navigator can use the available visual representations to better understand the general configuration of the area. A 3D view can also make it easier to perceive terrain and depth variations.

These features remain navigation aids. They do not replace observation from the vessel, official nautical publications, local information or normal navigation procedures.

Dock-to-Dock routing and route planning

Compatible Navionics charts may also include Dock-to-Dock routing, which can generate a suggested route between two points using available chart data and selected parameters.

This feature can be useful for quickly planning a coastal passage or exploring different possible routes.

However, it should be considered a route-planning aid. Garmin states that automatic routing does not replace prudent navigation. The navigator remains responsible for checking the route, depths, hazards, restrictions, weather conditions and all information required for safe navigation.

Example of use: coastal cruising

A sailor planning a cruise over several hundred nautical miles can use a Platinum+ Large chart to obtain extended geographical coverage on a compatible chartplotter.

Before departure, the navigator can examine ports, approaches, depths and different sailing areas. Once at sea, the chart can be used to monitor the route and consult the available information around the vessel.

The benefit of Large coverage becomes particularly apparent when the voyage crosses several coastal areas included within the same chart reference.

Example of use: fishing and seabed analysis

For anglers using a compatible GPS sounder, bathymetric information can be particularly valuable. Depth contours, SonarChart HD and underwater relief visualization features can help analyse seabed structure.

Shaded relief and the advanced features of Platinum+ can provide an additional visual representation of underwater depth variations.

The quality and accuracy of the information nevertheless depend on the geographical area, available data and equipment being used.

SD or microSD: what is the difference?

Navionics Platinum+ charts are supplied on SD or microSD cards depending on the reference and the equipment concerned.

The presence of a microSD card slot on a device does not automatically mean that it is compatible with Platinum+. The exact chartplotter model should be checked against the Navionics compatibility information.

The compatibility guide distinguishes models compatible with Navionics+ and Platinum+ and specifies the functions available depending on the equipment.

Compatibility with the GPS or chartplotter

Compatibility is therefore a key factor when choosing a Platinum+ Large digital marine chart.

You should check in particular:

• the exact make and model of the GPS or chartplotter;

• the generation of the equipment;

• its software version;

• the SD or microSD format supported;

• compatibility with Navionics Platinum+;

• the exact chart reference;

• the geographical coverage;

• the Platinum+ features available on the equipment.

There is also an important distinction to make: Navionics+ and Navionics Platinum+ charts intended for third-party chartplotters are not compatible with Garmin chartplotters. For a Garmin chartplotter, Garmin specifies the use of the appropriate Garmin Navionics+ or Garmin Navionics Vision+ ranges.

Chart updates

Navionics Platinum+ products provide access to chart updates under the conditions associated with the relevant subscription. Garmin indicates that updates and certain advanced features are linked to the applicable subscription period.

For navigation purposes, it is recommended to keep electronic charts up to date and regularly check the available nautical information.

Even a recent electronic chart does not replace Notices to Mariners, official hydrographic information, local regulations, weather forecasts and the other sources required for safe navigation.

Who should choose Platinum+ Large?

Platinum+ Large can meet the needs of a wide range of users:

• recreational sailors undertaking coastal cruises;

• navigators using a chartplotter as their main electronic charting system;

• anglers wishing to make use of bathymetric data;

• sailors travelling across several geographical areas;

• users looking for advanced underwater relief visualization;

• boaters wanting satellite imagery, aerial photography or 3D views when supported by their equipment.

The choice mainly depends on the sailing area, the chartplotter being used and the features actually required.

Key points to check before choosing a Platinum+ Large chart

Before selecting a Navionics Platinum+ Large digital marine chart, it is recommended to check:

• the exact chart reference;

• geographical coverage;

• chartplotter make and model;

• Platinum+ compatibility;

• SD or microSD format;

• features available with the chartplotter model;

• subscription and update conditions;

• the GPS or chartplotter software version.

The term Large alone is therefore not enough to determine whether a chart is suitable for a particular voyage. It is the combination of chart reference, geographical coverage and compatible equipment that determines the appropriate product.

Conclusion

The Navionics Platinum+ Large digital marine chart on SD or microSD is an advanced electronic charting solution for compatible marine GPS systems and chartplotters. It combines Navionics chart data, SonarChart HD bathymetry and the navigation features available within the Navionics ecosystem with premium features such as high-resolution shaded underwater relief, satellite imagery, aerial photography and 3D views, depending on the reference and equipment.

For coastal navigation, cruising across several areas or analysing the seabed for fishing, Platinum+ Large provides a particularly rich representation of the covered region.

The choice should nevertheless always begin with three key elements: the exact chart reference, its geographical coverage and compatibility with the GPS or chartplotter. Electronic charting also remains one navigation tool among several and should be used together with nautical publications, official information and applicable safety procedures.

FAQ – Navionics Platinum+ Large on SD / microSD

What is a Navionics Platinum+ Large marine chart?

It is a Navionics digital marine chart designed for compatible marine GPS systems and chartplotters. The Platinum+ range adds premium features such as high-resolution underwater relief, satellite imagery, aerial photography and 3D views, depending on the reference and equipment.

What does Large mean in Navionics Platinum+?

Large refers to an extended geographical coverage category. The exact area always depends on the chart reference. Large therefore does not automatically mean worldwide coverage.

What is the difference between Navionics+ and Platinum+?

Platinum+ includes the main features of Navionics+ and adds advanced visualization features, including high-resolution shaded relief, satellite imagery, aerial photography and 3D views, subject to the applicable product and equipment compatibility.

Does a Platinum+ Large chart work on every marine GPS?

No. Compatibility depends on the exact GPS or chartplotter model, its generation, software and supported chart format. The Navionics compatibility information should be checked before selecting a chart reference.

Does a Platinum+ microSD chart work on a Garmin chartplotter?

Navionics+ and Platinum+ charts intended for third-party chartplotters are not compatible with Garmin chartplotters. For Garmin equipment, the appropriate Garmin Navionics+ or Garmin Navionics Vision+ products should be checked.

Is Platinum+ Large suitable for fishing?

Yes, when used with compatible equipment, particularly because of SonarChart HD bathymetric information and advanced underwater relief visualization. The exact benefits depend on the covered area and chartplotter features.

Does Platinum+ show underwater relief?

Yes. Platinum+ provides high-resolution shaded underwater relief under the conditions supported by the product and compatible equipment. This visualization helps make depth variations and underwater terrain easier to interpret.

Does Platinum+ include satellite imagery?

Yes. Platinum+ includes high-resolution satellite imagery among its premium visualization features under the conditions supported by the product and compatible tools.

Can Platinum+ be used on a smartphone or tablet?

A Platinum+ chart on an SD or microSD card is designed for compatible marine GPS systems and chartplotters. It should not be confused with a Navionics application designed for mobile devices.

Are Platinum+ charts updated?

Platinum+ products provide access to chart updates according to the conditions of the associated subscription. The exact terms and duration should be checked for the relevant chart reference.

Does Dock-to-Dock routing replace navigation planning?

No. Dock-to-Dock routing is a route-planning aid. It does not replace checking the route, depths, hazards, regulations, weather and other information required for safe navigation.