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GPS Question

Discussion in 'Boat Electronics' started by Andy Saunders, Oct 22, 2005.

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  1. I have some experience with GPS units in auto's. Does the marine units work
    the same? Can you put a destination in the unit and it will show you the
    way like the one in an auto or do you have to manually put in the waypoints
    and then select each as you proceed toward a destination? I just purchased
    a boat with a Garman 2006C GPS. (I haven't taken possession of the boat at
    this point). Thanks.
  2. Jack Erbes

    Jack Erbes Guest

    Two part question, the answers are no and yes respectively. Except that
    you can create a route (a number of waypoints in a specific sequence)
    and the chart plotter will help you proceed to them in that order.
    That unit "wakes up" with a basemap that will show you about where you
    are but it does not have sufficient detail for navigation. That basemap
    is described here, note that the description makes no mention of the
    basemap having any buoys, lights, or other navaids on it.

    The detailed charts you need for navigation have to be put on Garmin
    Data Cards, those are then read by the 2006 and you get detailed
    charting. The Data Cards are a proprietary storage medium, sort of like
    a CF or SD memory card.

    You can buy preprogrammed Data Cards with charting for a given region
    (the expensive way to do it). The more economical (but complex and
    technical for some) way to get charting data is to buy a Garmin
    BlueChart CD with chart data, blank data cards, a data card programmer,
    and load the data cards using a PC.

    When you buy the BlueChart CD, data for one region of your choice can be
    unlocked and used. If you want to add more regions you pay more to
    unlock those.

    If your boat was well equipped and being used, it may come with a data
    card or two for the region where it was used. Or it may even come with
    a BlueChart CD, a data card, and a Garmin Data Card programmer.

    This page and the links from it will help you figure it all out, don't
    feel bad if it all seems a little complicated.

    Don't forget, you now own a hole in the water. Your key responsibility
    as a boat owner is to keep throwing money into the hole to keep Garmin
    and a number of other businesses and industries solvent. :>)

    Have fun!

  3. I think my advice would be to sell the 2006C, and buy an Etrex with the
    money, then use Oziexplorer on a laptop. That way, his hole in the water
    will get smaller, not bigger, and his navigation setup will be infinitely
    easier to use.

  4. Jack Erbes

    Jack Erbes Guest

    Dennis Pogson wrote:

    I'm assuming his 2006C is at the helm. Having good marine grade
    electronics in front of you, can add a lot to the safety and quality of
    the boating experience. The necessity of buying charting comes with that.

    I understand the joys of doing it more cheaply but that are always a lot
    of trade offs when you do that. I have never been on a boat where I
    thought that eliminating the built in electronics and replacing them
    with a laptop and a handheld GPS would be a satisfactory or, in most
    cases, even practical alternative.

  5. johnhh

    johnhh Guest

    I strongly agree. The OP didn't say what kind of boat he has, but on a
    smaller short handed sail boat, laptops just don't cut it as a primary
    navigation device. Unless you go to considerable expense, they just aren't
    dependable enough. By the time you get a fully rugged pc with outdoor
    display and don't load anything on it but the nave software, your better off
    getting a dedicated chart plotter. Especially since he already has a very
    good one. Keep the laptop down below for trip planning, web surfing and all
    the other things you want a computer for.
  6. A great deal depends what type of boating he intends to do.
    Round-the-world-racing would demand a different set-up to coastal pottering.
    Quite honestly, for the latter, I think your own eyes and other senses are
    the best form of navigation, backed up by an in-depth knowledge of
    traditional chartwork.

  7. Thanks for your responses. The boat in question is a 44 Viking. The 2006C
    is built in the console on the bridge. The debate has been to update the
    present radar (in need of repair) with a new radar that is a multi-device
    unit (which includes the chartplotter) (Raymarine for example) and get rid
    of the 2006 or just purchase a radar itself (JRC monochrome screen) and keep
    the 2006C. I have found the 2006C is a good chartplotter but you cannot add
    add'l items (radar) to it like their 3006 or 3010. One dealer suggested
    that I get the 3010 (including the garman radar) and utilize garman for the
    package. Any opinions. The last time I owned a boat it had loran... over 10
    years ago. There are more products affordable and available now.
  8. Jack Erbes

    Jack Erbes Guest

    The newer displays (a Raymarine C120 I used recently immediately comes
    to mind) make a combined radar/chart plotter display very practical.
    They can be dimmed down for night use to where they no longer overwhelm
    your night vision and ability to see out of the cockpit while using them
    in darkness. And they are large enough to provide good detail on both
    the radar and chart plotter when in the split screen mode.

    I recently made a night arrival to Portland, ME in darkness and in party
    with another boat, and was able to dim the C120 down until I was very
    comfortable that I had "the big picture" and also could discern detail
    out of the cockpit. I was very impressed with it.

    With earlier color displays, I often had to cover up fully dimmed
    displays to keep their brightness from overwhelming my ability to see
    outside of the cockpit. The newer color LCD's will dim down much better.

    The older monochrome LCD or CRT chart plotters and radar displays were
    fine after dark as they could both be dimmed way down. But as the color
    chart plotters became more common and the radar display were combined
    with them, their suitability for night use became questionable to me.

    I don't have any experience with the Garmin 3006 or 3010, I have heard
    favorable comments about them from boat owners though. But if I were
    going to buy a new radar and/or chart plotter with either separate or a
    combined display I would certainly try to get a demo in a dark room or
    see the display in use at night on another boat.

    Most chart plotters and radar systems have built in simulator modes that
    are adequate for for giving you a feel for their use. But seeing them
    in daylight in a brightly lit showroom won't give you the whole picture.

    I do some boat deliveries so, while I don't own one of everything, I do
    get a chance to see quite a few different systems in use.
    You'll not miss having Loran on your new boat. It is a good system and
    works well enough. But GPS with a chart plotter will take up much less
    of your time and give you more info. You can use that time to use your
    charts, get you head up out of the cockpit, and have much better picture
    of where you are and what's going on around you.

  9. Jack's right about LORAN. If you've got it it's OK, but LORAN can help you
    navigate to the harbor, GPS can help you get to your slip.
  10. John Proctor

    John Proctor Guest

    I install the stuff so here goes nothing. If you can afford it go with
    the E series on Raymarine the display is significantly better than the
    C series. But the best display IMHO is the 10.4" Navnet 2 FURUNO. The
    display is absolutely brilliant. The FURUNO uses C-Map and the
    Raymarine uses Navonics. From what I've seen I would lean towards the
    Navonics charting but that is personal taste.
  11. Jack Erbes

    Jack Erbes Guest

    Have not used an E-Series yet, but I'm looking forward to it if they're
    better than the C-Series. The sticker shock on the prices for the
    better multi function displays fades a little when you blend the cost
    into the overall prices of the boats they are found on. And you can do
    it all on one good larger display now instead of having two or three
    good smaller ones.

    Furuno chart plotters were offered with chart card slots for either
    Navionic or C-Map charting. The on line advertising and specs for the
    newest NavNet displays shows they offer both CDC/Navionics or C-Map
    models. One the CDC/Navionics model, it says they can use "either CDC
    or Navionics mini chart cards".

    I'm not familiar with "Furuno CDC" charting, is that a proprietary
    branding of the Navionics stuff?

    I find it hard to fault either C-Map or Navionics charting but, I sort
    of prefer the latter. It may be because it is the one I encounter most
    often and I am more familiar with the coverage from one chip to another.

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