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Best Helpful Content

  • Information on Birds Eye and SD Card

    This is an old thread, but my numbers should give you some idea of how much coverage you can fit on a card.

    Rounding off... figure about 2.5 MB per square mile for the highest quality imagery. So that is about 400 square miles per gigabyte. So, theoretically, you could fit 25,600 square miles on a 64gb SD card. That would be the equivalent of an area 160 miles x 160 miles.

    Now my subscription expired a long time ago, and I know they have made some changes. But according to my old thread, there are 150 image tiles per square mile. I think you will probably hit some other limits before reaching 64gb - that would be almost 4 million tiles and I doubt your device can handle that many, regardless of the memory card size.

    I have a 16gb card that is full of birdseye imagery. When I insert this in my Montana, it takes forever to start up, which I found unacceptable. You will have to do some experiments to see how much imagery actually works well on your GPS.
  • Garmin Drive 61 - Editing a previously saved Trip Planner route

    @Danny What happens though when you tap Go and try to navigate that route?
  • Garmin Drive 61 - Editing a previously saved Trip Planner route

    Trip planner can only accept 30 waypoints/viapoints whether sent directly from BaseCamp or created on the device. What your device and BaseCamp can also do is use shaping points, you can have hundreds of these between waypoints/viapoints. If you open Trip Planner on your device and then select a trip, shaping points are shown as small circles, sometimes depending on model with a line either side. Waypoints/viapoints are shown as flags. There is more info here
  • Nuvi 1340 problem with TYRE routes

    Your 1340 won't accept routes from any source, sorry.
  • Drive Units add new Trip Data Options

    The image in your post shows for me. I assume you know this, but the way to post an image changed when Tim updated the software (several years ago now). You need to click the little picture frame icon, then paste the URL into that box.
  • How to update a nuvi 1300 with lifetime updates when I only have XP computers??

    It's great that you got it working. The last time I tried it would hang part way through the download and I finally gave up and used Express.

    If you look at the link @t923347 posted, it shows two versions on the Nuvi 1300. Am guessing that you have the version that included the full North America map along with a lifetime update card. I used to have a Nuvi 1350 which was like the other version that only had the "lower 49" map and no updates.

    I have wondered about whether Garmin is strictly enforcing the new 2 year update policy. Some people have reported that they are. I have a couple old units myself (Nuvi 3550 and Dezl 760) that have not been updated for a long time so maybe I will try someday and see what happens. Have pretty much given up on them though, my phone is much better with the Garmin StreetPilot app which looks just like a Nuvi.

  • Traffic Cable vs Smartphone Link

    I think you will find Smartphone Link Traffic superior in both accuracy and coverage compared to the HD traffic with the GTM-60. I have both on my nuvi 3597LMTHD and there is no HD coverage at all in my local driving area, but the Smartphone Link coverage is quite good.

    The main advantage of HD traffic with the GTM-60 is that it doesn't need a cellular signal, the smartphone, or its data allotment. However wherever there is no cellular signal you will find that there is no HD traffic coverage either.
  • How does GPS determine heading in 2017?

    Some handheld devices have a magnetic compass that kicks in when the speed falls below a certain threshold (2 or 3 MPH). When moving faster than this it uses the incremental track points (breadcrumbs as you say) to determine heading.

    Most (maybe all) Garmin automotive devices just use motion and don't have a magnetic compass. Under certain conditions, it can actually cause the heading to change when stopped (because of drift or false readings). Sometimes in 3D or track up navigation mode it will cause the map display to rotate. In North Up mode your vehicle icon will rotate.
  • Cheapest unit that will allow download from Google Maps

    What you can do though is to save the Google route as a kml file, import it into BaseCamp then send it to a device.
  • Garmin Express can't find my Nuvi 3597

    If you have a backup, I would be tempted to make a new clone and re-do the map update. Either that, or copy the old version of garmindevice.xml to your nuvi, fire up GE and reupdate the map on the nuvi itself.