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Old 18 March 2013, 13:45   #11
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Really helpful to compare with the Navionics Jeff - can you zoom into Skervie Skerry to compare with my file 3 where the obst/rock data is approximated. Thanks - I do like the Navionics look, though very happy with the Garmin unit itself.
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Old 18 March 2013, 13:59   #12
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PS - please do contribute examples from any other chartplotter data sets. This is really useful and hard to do before you buy.
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Old 18 March 2013, 14:00   #13
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Shots attached, The second one shows the tidal diamond info once you click to open - its interactive in that you can scroll through the days and get graphical speed, direction and high/Low and then a tabular format of HW/LW

I have had a Garmin for 13 years - originally just a 128 GPS and then GPSMAp292 which is still going strong. I do find the Garmin menus more intuitive to use. Bought the Lowrance HDS last year for its down and sidescan functionality - which is superb. I have a Garmin 340C sounder and have never managed to get it to read the bottom at anything over about 15 knots - played around with height, angle etc etc for ages yet the Lowrance skimmer tracks even at 40 !
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Old 18 March 2013, 14:04   #14
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Admiralty Chart

And for comparsion, here's the Admiralty chart from Free charts, tide tables and pilotage : from Visit My Harbour

Steve
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Old 18 March 2013, 14:09   #15
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Brilliant Jeff.

The Sector Light at Commercial Quay is a good reference point to look at. Very clear on the Navionics and paper chart, but not instantly obvious on the Garmin.

Wish we had the Navionics charts on the Garmin units!
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Old 18 March 2013, 14:11   #16
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PS - is it possible to update the name of this thread, as I think the current title belies the very useful info it now has on different chart types? I wish I'd seen this 18 months ago!
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Old 18 March 2013, 14:11   #17
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Brilliant Jeff.



Wish we had the Navionics charts on the Garmin units!
now that would be good
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Old 18 March 2013, 14:14   #18
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The map data around Skervie Skerry is very useful too. The Garmin data just says "avoid" whereas the other two show how to navigate to avoid the rocks.
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Old 18 March 2013, 16:26   #19
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PS - is it possible to update the name of this thread, as I think the current title belies the very useful info it now has on different chart types?
Would you care to suggest a title that retains the spirit of the original and yet meets your own requirements?

Funny names you lot give your littoral features. Given that yiz don't get a lot of sun, I guess that rock must be kinda blue white with veins?
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Old 18 March 2013, 20:17   #20
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Thanks Willk. How about title + "chartplotter map detail"
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