Moderated Discussion Areas
  ContinuousWave: Small Boat Electrical
  Digital Chart Cartography Stored on Memory Chips

Post New Topic  Post Reply
search | FAQ | profile | register | author help

Author Topic:   Digital Chart Cartography Stored on Memory Chips
David1877 posted 02-06-2007 05:29 PM ET (US)   Profile for David1877   Send Email to David1877  
I own a Lowrance 337c GPS [Chart plotter] and fish locator. The unit has the capability of adding [digital cartography stored on memory chips] for more port and depth information.

I fish Lake Michigan. The software may be worth the additional [expense] if the software accurately displays variations in depth.

The sales/demo information looks somewhat promising.

Any experience with [digital cartography]?

JMARTIN posted 02-06-2007 06:30 PM ET (US)     Profile for JMARTIN  Send Email to JMARTIN     
I put [digital cartography stored on a memory chip] in my Lowrance 337 CDF. WOW, the screen went from looking like a placement at a local seafood restaurant to looking like an expensive chart. I can not remember the name of the chip, it cost about a $100. It may be Navionics. It covers all of Puget Sound and the Gulf Islands. It is very accurate on depth, has some current readings, and shows land elevations also. I like it. John
jimh posted 02-06-2007 08:13 PM ET (US)     Profile for jimh  Send Email to jimh     
[Changed TOPIC, was "Data Chips for GPS".] There are many sources of digital cartography stored on memory chips. One problem with digital cartography is there are many standards and formats for the data. Most chart plotter devices support only a single format.

The United States federal government has released all their NOAA charts in digital format. If you chose a chart plotter device that can use the ENC format, you can get all of your chart data for free.

There are many vendors of digital cartography. Digital cartography has nothing at all to do with the Global Positioning System and GPS receivers. Many times the term "GPS" is used to refer to a chart plotter device. The two are often combined. Lowrance has a interesting integration of chart cartography stored on a data-CD-ROM and a utility program to upload selected data to the chart plotter.

In general, I find that a GPS Chartplotter combination is drastically enhanced when used with good digital cartography for the region or area in which you are boating.

bms1939 posted 02-06-2007 10:49 PM ET (US)     Profile for bms1939  Send Email to bms1939     
Navionics charts are worth every penny, the details are the best i've seen. Go for it, you wont regret it.
jimh posted 02-07-2007 01:15 AM ET (US)     Profile for jimh  Send Email to jimh     
Re NAVIONICS cartography, see:

Digital Chart Cartography--NAVIONICS Wins 2006 NMEA

bluewaterpirate posted 02-07-2007 07:32 AM ET (US)     Profile for bluewaterpirate  Send Email to bluewaterpirate     
C-Map changes sold to Boeing. This happened Monday but wasn't offically announced until yesterday.

Press Release

We are pleased to announce that C-Map, the world’s leading provider of digital maritime cartography, data services and navigational information, is now part of Jeppesen, a wholly owned subsidiary of The Boeing Company. The recently completed acquisition brings nearly 100 years of combined and proven experience and leadership to the marine market.

C-Map is being merged into Jeppesen’s marine business unit. Jeppesen is widely recognized as the world’s leading provider of aviation navigation information and operational solutions. We play a key role in the aviation industry to ensure the accurate and timely delivery of sovereign aviation content to millions of pilots worldwide, and now the company looks to leverage its pioneering roots and deep capabilities to expand into markets that are similar and complementary to our core competencies.

C-Map is an excellent fit with the existing Jeppesen Marine business, and the two operations will complement each other very well. The acquisition provides exciting opportunities for growth and accelerates the business plans of both organizations. We will bring to market exciting new technologies and innovations that are proven through decades of aviation experience, and our deep global knowledge base means we can bring to you the services you need. It also means that Jeppesen Marine now has a vastly expanded global base of operations in over 47 locations around the globe.

Below are some FAQs to provide additional answers on a variety of related topics. The contact information that you have used in the past for C-Map is still valid, or you may use the contact information provided on this letter if you have any questions and/or concerns. We look forward to sharing more exciting news with you as it develops throughout 2007. Please visit if you would like more background information on our company.


Will the C-Map name/brand continue in the market place?
Yes for now. C-Map is an outstanding brand backed by tremendous products and strong reputation. C-Map is now part of Jeppesen Marine’s family of product brands, as is Nobeltec. Eventually everything will be migrated to our master-brand ‘Jeppesen Marine,’ but this will be an evolutionary process.

Will C-Map cartography be available in Nobeltec navigation software?
Yes, we anticipate this process to be completed within the first year. We will have a method to switch existing customers’ Passport data into C-Map charts. Look for more announcements to be forthcoming.

What will happen with the Nobeltec Passport product?
As C-Map cartography becomes available in our applications, we’ll have more information on the Passport brand and products. Of course, we will provide an upgrade path for existing Nobeltec users.

Who do I call for product support?
Until further notice, the existing phone numbers will continue to accept service calls.
800.424.2627 X770

Will C-Map continue to offer its Club C-Map program? Will I still receive my updates that I am entitled to with my subscription?
Yes, Club C-Map will continue and all services that you are expecting as part of Club C-Map will be delivered as planned. Please, don't hesitate to call Amy or Carol at the Club desk with any questions or concerns.


BarryGreen posted 02-07-2007 08:44 AM ET (US)     Profile for BarryGreen  Send Email to BarryGreen     
David - I boat on a large lake in NH, and use a Navionics Premium HotMap chip in my LCX-110C. The detail and functionality is superb, and coupled with the 600x800 color display the overall effect is terrific. Navionics also seems to offer the largest number of "charts" for inland lakes, and they are continually updating and releasing additional enhancements. I wouldn't hesitate to recommend the Navionics approach for the Lowrance family of chartplotters.


jimh posted 02-07-2007 01:41 PM ET (US)     Profile for jimh  Send Email to jimh     
For inland lakes not covered by NOAA charts, you are at the mercy of a private publisher like Navionics.
David Pendleton posted 02-09-2007 10:10 AM ET (US)     Profile for David Pendleton  Send Email to David Pendleton     
Is any electronic chart vendor offerring more detail than is available on the equivalent NOAA (or Canadian, or European, etc.) chart?

I was always under the impression that the electronic products were based on the paper charts and while some formats offered less detail, none would provide more detail.

I'm probably wrong on that, and if so, where do they get the additional data/detail?

montauk steve posted 02-09-2007 12:51 PM ET (US)     Profile for montauk steve  Send Email to montauk steve     
I have the Navionics chip for the california. the detail is great! Its about 100 bucks maybe less if you shop around.
jimh posted 02-09-2007 01:21 PM ET (US)     Profile for jimh  Send Email to jimh     
I have never heard of any of these private chart publishers conducting their own hydrologic surveys on water where there is existing NOAA chart data available for free, and, on that basis, my assumption is that all of the hydrology they show is based on the government chart data, or on the data of other chart publishers.

The enhancements that some chart publishers provide may be in the form of more information about shore resources like marinas. For example, the chart data may include the telephone number of the marina. Or some publishers are including aerial photography of the chart region. An aerial view is nice, but usually the aerial view matches with the representation of the land forms on the chart--that is what a chart is supposed to do. However, there are some circumstances when an actual visual of the land forms may be very helpful, for example, if an island is wooded or has a prominent feature. Such features may not be clearly indicated on the chart, or the person viewing the chart may not be able to visualize them from the data on the chart.

Some digital chart cartography also includes data from the LIST OF LIGHTS, also a NOAA or government publication. It is handier to access this data through the hypertext interface on a chart, in some instances, than by dragging out a thick reference book and looking up the data.

The cost of the memory chips loaded with chart data has become quite low and, in many cases, the cost of the chip is significantly less than the cost of purchasing all of the NOAA charts in printed form which are contained on the chip.

I have a C-MAP chip for the Great Lakes. It has data from about 40 charts, I think. Those charts are about $20 each. Thus to buy all the charts would be about $800, while the chip only costs $200. It is also much more convenient than keeping a library of 40 charts aboard a small boat.

I think the original inquiry was along the lines of whether or not there was value to be gained by augmenting the rudimentary or base cartography contained in a particular chart plotter with more detailed digital cartography on a memory chip. The answer to that is clearly an resounding "YES."

Mambo Minnow posted 02-10-2007 11:49 AM ET (US)     Profile for Mambo Minnow    
I currently use the older Garmin cartography chips in my current unit. Buying a new chip for every locale I visit or move to can get expensive too.

Garmin seems to have a better reputation for chartplotters and Lowrance for sounders. However, IMHO the Navionics chip with my Eagle chartplotter/sounder was every bit as good. I am not one to rush out and fork out over $1000 for the latest technology every year. The black and white data displayed works just fine to me!

When it comes time to upgrade the hardware, the newest units with BlueChart G2 have a detailed basemap of the entire U.S. making separate chips unnecessary except if you want blank ones as a medium for recording data. That hard drive upgrade plus weather display overlay does seem like a worthwhile investment.

I have more space on my current console, so I plan to continue to have separate sounder and gpsmap units.

David Pendleton posted 02-10-2007 11:19 PM ET (US)     Profile for David Pendleton  Send Email to David Pendleton     
I was previously using Garmin's G-Charts and BlueChart with my GPSMAP 175 and GPS V.

The G-Chart(s) were great 7 years ago when I bought the boat, but they pale in comparison to nearly every format available today.

The BlueCharts are great, but as you might imagine a GPS V is not the best place to run them. I sometimes hooked the GPS V to my laptop, but more often than not I just used the unit with paper charts.

My new RADAR display supports C-Map cartography, which I've seen demonstrated at various boat shows. I think I'm going to like them.

It was interesting to hear the various manufacturers claims at the boat shows. They all claim to have more detail than the others...

Post New Topic  Post Reply
Hop to:

Contact Us | RETURN to ContinuousWave Top Page

Powered by: Ultimate Bulletin Board, Freeware Version 2000
Purchase our Licensed Version- which adds many more features!
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.