Setting Up a Garmin 76- or 60-series GPS

Discussion in 'Mapping & Navigation' started by SnowMule, Jul 27, 2013.

  1. SnowMule

    SnowMule [angry moth noises]

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    You can also have routes in here, they're formatted kind of as a hybrid between tracks and waypoints.

    They're similar to tracks in that you have a high-level RTE called out with a name and the route is top-to-bottom in the array.
    They're similar to waypoints in that each point has a lat/long, name, comment, symbol, elevation, etc.
    Code:
    ≤rte≥
    ≤name≥Example Route≤/name≥
    ≤rtept lat="40.389079995" lon="-106.635330060"≥
        ≤name≥Beginning≤/name≥
        ≤cmt≥First Route Point (1/3)≤/cmt≥
        ≤sym≥Flag, Blue≤/sym≥
    ≤/rtept≥
    ≤rtept lat="40.387669334" lon="-106.618745322"≥
        ≤name≥Middle≤/name≥
        ≤cmt≥Second Route Point (2/3)≤/cmt≥
        ≤sym≥Flag, Blue≤/sym≥
    ≤/rtept≥
    ≤rtept lat="40.55697978" lon="-106.5962596"≥
        ≤name≥End≤/name≥
        ≤cmt≥Last route point (3/3)≤/cmt≥
        ≤sym≥Flag, Blue≤/sym≥
    ≤/rtept≥
    ≤rte≥
    You can copy/paste values, chunks of data, or even find/replace text to convert a list of waypoints to a route and vice versa as long as you keep the appropriate formatting. Again, you're really just editing a text file.

    I like GPSBabel (available for Mac/Win/*nix) for validating GPX files - Where LoadMyTracks and Google Earth either puke errors or simply don't load the file, GPSBabel tells you what line number the problem's at. Usually you're missing an open/close tag there.

    That answer your question?
    #21
  2. SnowMule

    SnowMule [angry moth noises]

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    Here's what my Rabbit Ears.gpx looks like (the file I took data out of for the previous examples). I've removed some points to shrink it to size, but you get the idea.

    Also illustrates why I like a better text editor than TextEdit/Notepad. Syntax hilighting makes reading/editing these MUCH easier. Adding comments is good coding standard.
    The (...) in here is where data's been folded up - notice the line numbers.
    Notepad++ just replaces a [-] with a [+] on the side.

    [​IMG]

    I've got a whole library of these files I squirt into the GPS the night before I go riding.
    #22
  3. ramjet

    ramjet Long timer

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    First a basic question. Say, I have all of western states from City Nav and Roads and Rec loaded via Mapsource on the desktop. Then someone sends me .gpx with 25 tracks/500 waypoints. So that is added. Now I need to add another .gpx to the above that has a route correction. How does that get added so it shows as part of the overall map/route in the best way?
    #23
  4. SnowMule

    SnowMule [angry moth noises]

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    You're looking at two different memories here.

    The maps (excluding the basemap) are stored on the µSD card in the /Garmin/GMAPSUPP.IMG file. If the GPS sees that file on bootup and can read from it as a valid map file, it'll load that as additional maps on the device. Depending on the map you have loaded, it may have autorouting features, topo lines, various POI groups, marine/depth data, etc. There's a 2025 tile limit for these mapsets with the 60/76, expanded to 4k (per mapset) on the 62/78.

    Then there's the user data. This is the Active Log, Saved Tracks, waypoints, and routes. This is saved in onboard memory on the device. With "Log Tracks to Data Card" enabled, the device will write a copy of the Active Log to the memory card, but no user data on the memory card can be read into the map page or waypoint/route lists.

    Maximums:
    • 20 saved tracks, 500 points each (Appear in the list on the Tracks page)
    • 1 Active Log, 10000 points (% on the Tracks page, sections up to 500 points can be saved to Saved Tracks)
    • 1000 user waypoints
    • 50 routes, 250pts each

    To fit 25 tracks on there, you'll need to trim down or eliminate redundant points, possibly merging multiple tracks into one longer track with slightly fewer points.

    So I've got a library of GPX files on the computer. If I'm riding through multiple areas, I'll squirt in as many of those files as needed as long as I know I'm still under the limits (and i'm nowhere close).
    Rampart.gpx has about 25 waypoints, 1 saved track with about 30 points in it.
    Rainbow Falls.gpx has half a dozen waypoints.
    717.gpx has 2 saved tracks, and another 15 waypoints.
    Once all those are moved into the receiver, I've got 3 saved tracks on the tracks list, and about 50 waypoints in there.

    Another option for managing a massive amount of waypoints is to build a Custom POI (Point of Interest) file - While this won't show up on the map page by default, you can select from multiple databases within the Custom POI menu. You can save POIs as waypoints if it's something you'll be referencing often, but you can delete the waypoint and still have the POI available.

    [​IMG] [​IMG] [​IMG]

    You can build several custom POI databases and select one or all of them.
    Each database can have its own custom icon.
    You can add quite a bit more freeform text along with the POI.

    It's been a long while since I built ^^ database; it wasn't overly difficult but it was a lot of data to deal with and keep straight. Use "Garmin POI Loader" to build and install the files.
    #24
  5. Countdown

    Countdown Long timer

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    With MapSource you can have as many .gdb files on your hard drive as you want. You open each file with MapSource and you select which map set you want to view the file with (CN or R&R, select at top). If you have date (tracks waypoints etc) in one file and want to combine it with data in another file, just Select, Copy in first file, switch to other file and Paste.
    #25
  6. ramjet

    ramjet Long timer

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    Great stuff! I'm going to play around with it tonight. Downloaded Notepd ++ and GPSBabel.

    I'll need to cut down the number of tracks to run on my 60csx.
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  7. Countdown

    Countdown Long timer

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    Most people make a file for each ride, then just download the data from that file to go on that ride. the 20 tracks of 500 points will hold a 2,000 mile ride )like CDR).
    #27
  8. ramjet

    ramjet Long timer

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    Picked up a new Sandisk 8g card to use. SD card reader won't read the micro in the SD adapter. Time to scrap this 7+ year old POS. :bluduh

    Maybe I'll just get a Macbook. Anything smaller, mobile to do editing on?
    #28
  9. SnowMule

    SnowMule [angry moth noises]

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    Card might just need a formatting. :deal

    Macbook for mobile/travel use? :uhoh
    Might look at an older netbook, chromebook, etc. You can find these setups for $200-300.
    The Macbook's great, but it's pretty expensive to be banging around in a pack or saddlebag.
    Either way, I strongly suggest a SSD for it vs. a conventional HD if you're using it offroad much.

    The big software tools you'll need are a good text editor, something that'll let you push data into and suck data out of the receiver in GPX format, and Google Earth to visualize the data.

    The first two are easily covered with pretty much any computer. Both Google Earth and GPSBabel can talk to receivers, though I prefer LoadMyTracks (Mac) or EasyGPS (Win). Again, both free, because i'm a cheapass.

    Google Earth is the most processor, RAM, and network-intensive of the three, by a long shot. You can scale things back to improve performance, but it's still going to be painfully slow on an old/low-cost workstation.

    You can also put some software tools and files on the data card in the GPS. For the most part, the GPS ignores files it can't read. Then find a "business center" in a hotel somewhere and use that computer. :evil Mass Storage mode to copy the apps out, reboot the GPS into normal spanner mode and do what you need to.
    #29
  10. jackanory

    jackanory I am Jack's wasted life

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    thanks for this write up. Very helpful!
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  11. 250senuf

    250senuf Long timer

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    It could be that your card reader or adapter can't handle SDHC, SD. 8GB would be SDHC. The max for SD is either 2 or 4GB.
    #31
  12. MadM

    MadM Dreamer

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    Hey!

    I have just made a master reset on my 60csx and set it up per your instructions in this thread. Thanks for such a detailed explanation. But a have a question. I have made a custom map set on the SD card, my country and the neighbouring ones, and have unchecked world marine map in the GPS itself, but when inserting a new address or destination I always get all the worlds addresses in there. So is there any way to remove all world addresses? I only need central EU, not Pakistan, Brasil, Nepal, and similar addresses.

    Thanks for your help!
    #32
  13. SnowMule

    SnowMule [angry moth noises]

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    It's probably digging that stuff up from the basemap installed on the device.
    I don't think that can be turned off.

    IIRC the default for searching is to search by nearest, rather than alphabetical, so the topmost results in the list should be the nearest. If you're on the edge of your installed mapsets, it may be pulling from the basemap in addition to what's in your mapset.

    :dunno
    #33
  14. MadM

    MadM Dreamer

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    Thanks for your reply, I made a reset to factory defaults, unchecked the base marine map on the device and after that put the SD Card with my maps on and it seems to have solved the problem and it is showing results nearest first.

    Cheers!
    #34
  15. SnowMule

    SnowMule [angry moth noises]

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    Preview On the topic of master resets and position fixes...
    ...GPS misbehaving? Unit locking up?
    First try pulling the µSD card. If there's corrupt data on there, that could cause some strange behavior in the receiver as it tries to read that bad data.

    Taking a while to acquire a position, or not acquiring satellite lock at all?
    Probably time to reset everything and start fresh.

    This will reset ALL your user data! If you've got waypoints/tracks/routes in there you want saved, make a copy of them.
    Data on the µSD card is safe through a reset, though I recommend removing the card until you're ready to deal with that data.

    The non-color 60/76's use [MENU] on startup to reset.
    The Color+ 60/76's use [PAGE]+[ENTER] at boot.
    You'll see the "Are you sure?" alert:
    [​IMG]
    Cursor right to "Yes", then [ENTER]. Screen will flash and (almost) everything will be reset to defaults.
    Welcome message and mapset cache persist through a master reset. I haven't found a way to wipe these yet.
    What does get reset is all your settings, active log and saved tracks, waypoints, routes, satellite data, and the date/time.

    Since the unit now has no idea where on the planet it is, no idea what time it is, or where to look for satellites, it needs to reacquire all the information on the satellite constellation. This is called a "Cold fix". Set the receiver somewhere it has a clear view of the sky, and leave it there for 15-30 minutes.

    Almanac data is transmitted in fragments with the messages from the satellites. It takes a little over 12 minutes to get the entire package of data that contains the location of all the satellites in the GPS constellation.
    In order to download a complete almanac, a single satellite has to be in range for the whole 12+ minutes; the receiver can't piece together a complete message with parts of the message from several satellites.
    This data is valid for several months (updated at least every 6 days), although your GPS will always be downloading and using the latest data as it's being received from the satellites.

    Ephemeris data is the specific data for the satellite in its orbit. This data is only valid for four hours, although it's updated more often than that (2 hours). The receiver needs about 30 seconds to download that information.

    Once the GPS receiver has BOTH the complete almanac and ephemeris data for 3 or more satellites, it will be able to calculate a position.
    The precise time signal (Each satellite has a Cs-atom time standard on board) is used to determine your point in space.

    A "Warm fix" is where the receiver has a valid almanac, knows what time it is, and knows about where on the earth it is (within 200 miles of last fix). An updated date/time and current ephemeris data is all that's needed.

    "Hot fix" is where all the information is already known. In "Power Save" mode, the receiver only does position calculations every 10 seconds... basically turns off then back on and "hot-fixes" every 10 seconds. Power-cycling the GPS usually results in a hot-fix as well.

    That's why it takes so long to calculate where you are after a reset, or after the GPS has moved from where it thinks it is.

    On the Satellites page, the horizon is the outer ring, and straight up is the center dot.
    Empty bars indicate the receiver is reading data from that satellite but doesn't have current ephemeris data on it.
    A filled bar indicates the ephemeris data and time is downloaded and being used in the position calculation.
    A "D" on the filled bar indicates a differential (WAAS or EGNOS, if enabled in settings) correction on that satellite.
    #35
  16. MadM

    MadM Dreamer

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    What kind of fuses to you use on your bike while charging your GPS? Original Garmin is glass fuse rated at 1,5A since these are hard to get, can I use a 2A blade style fuse?

    Thanks!
    #36
  17. SnowMule

    SnowMule [angry moth noises]

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    The GPS doesn't charge off the external power.

    USB must be regulated (well-regulated, i've blown up a GPS using a cheap car charger) to 5V. Unless it's a computer, I -never- use USB to run the receiver.
    The 4-pin round can take 8-30V DC on the power and ground pins of that connector. There's a regulator inside the GPS that brings that power down to a usable voltage.

    With power on either USB or the 4-pin round, the GPS will switch to external-power and show a plug icon where the battery gauge usually is. The unit will run off that until power is removed, at which point it switches back to batteries and depending on your settings either starts a 30-sec shutdown timer or throws an "External power lost [Enter]" alert and stays on. (The 62/78's removed the option to "stay on"

    The GPS uses about 1/4-amp (250mA) iirc, with everything running. 1A fuse is plenty adequate.

    Personally, I have a polyfuse in my dualsport controller where the connector for my GPS is. On the sled I've got a 1A blade fuse inline. I've never popped either one.
    #37
  18. MadM

    MadM Dreamer

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    Thanks for a really informative reply :thumb I am using a 4-pin plug and it is wired directly to the battery. So now that I know that 1A fuse is enough, I will go and get some of them.

    Thanks a lot!
    #38
  19. DustyKnobs

    DustyKnobs n00b

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    This write-up has been extremely helpful for me. I have a 60CSx that I have never taken the time to try and learn to properly use, until recently. I finally figured out how to use Mapsource and get the maps and tracks loaded that are relevant to my area (reducing large tracks to multiple 500 pt files, selecting map segments, etc.), but once I got them loaded on the device, what I noticed was that none of my efforts mattered if I CAN'T SEE THE BLOODY THING.

    I find that when motoring along, I have to pull over, cup hand over lens, squint, take a breath, squint again, give up, reach for reading glasses, then still find I can't see the damn dotted line of the intended tracks I wish to follow, but ... only AFTER I realize I have been following a contour line for the last 40 miles.

    I have tried setting the track colors to every option, but I haven't seen anything with enough contrast to jump off the green background the map uses to define national forest.

    I need to figure out a way to increase the weight of the line used for the tracks. Or change the background color of the map. Or make them blink like a Vegas casino's marque.

    I've seen the magnifying glass bolt-on device that is available, but I am already a bit uneasy about the vulnerability of the mounted GPS when exposed to offroad conditions, so the addition of yet another object flapping around isn't my preferred choice.

    Is there by any chance a way to change to line weight of the tracks I load?

    Again, thanks for this great write-up.
    #39
  20. wbbnm

    wbbnm Long timer

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    I ride with a few guys who have this problem. On some units you can navigate a track. This puts a wide magenta line over the track. But as I write this I have my doubts that the 60 has this feature. I never tried to use it when I had one.

    When I had my 60 I could only really see the screen if the sun was shining on it. So when I stopped to take a close look at something I would ensure I was oriented with the sun behind me.

    I also use a Ram mount which allows some freedom in orienting the unit properly.

    If you just plain can't see it because of poor eyesight, you might have to figure out a way to wear glasses while you ride.
    #40