extra maps indicated on my eTrex 22 ?

Discussion in 'Garmin GPS' started by adgorn, Mar 18, 2024.

  1. adgorn

    adgorn

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    When I plug into Garmin Express, it indicates "TopoActive North America 2023.10" as the map on my device. However, I see more in addition to that when I go into the device under Setup>Map>Map Information>Select Map, such as:

    Enabled - Worldwide DEM Basemap NR
    Enabled - Garmin DEM Map North America 2023.10
    Enabled - TopoActive NA, Middle America 2023.10
    Enabled - TopoActive NA, Canada/Alaska 2023.10
    Disabled - Digital Globe Demo.jnx
    Disabled - USGS Quads Grand Canyon National Park.jnx

    So what are these? Is there a way to remove? Thanks!
     
    adgorn, Mar 18, 2024
    #1
  2. adgorn

    adgorn

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    I just discovered from SUpport that “Coverage for North America is comprised of three different files on the device. Canada/Alaska, US all states except Alaska, Middle America south of the US border.”
    So that leaves :
    Enabled - Worldwide DEM Basemap NR
    Enabled - Garmin DEM Map North America 2023.10
    Disabled - Digital Globe Demo.jnx
    Disabled - USGS Quads Grand Canyon National Park.jnx
     
    adgorn, Mar 19, 2024
    #2
  3. adgorn

    adgorn

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    More research shows: "DEM (elevation display) is part of the world base map (gmapbmap.img). It only shows when you zoom way out on the 2D map." So that leaves:

    Disabled - Digital Globe Demo.jnx
    Disabled - USGS Quads Grand Canyon National Park.jnx
     
    adgorn, Mar 19, 2024
    #3
  4. adgorn

    Nuvi-Nebie Moderator

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    JNX files are usually small Birdseye overlay maps, these are photographic views from above like Google Earth, there is some info. on the Digital Global Demo here :-

    https://support.garmin.com/en-GB/?faq=T5bdgwIIWtAGR00cQZyBF9

    It is possible to remove these jnx files but as they are much smaller than a proper map you won't be saving much storage space and they can be Disabled (as they currently are) so you will never see them
     
    Nuvi-Nebie, Mar 19, 2024
    #4
  5. adgorn

    adgorn

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    Thank you!
     
    adgorn, Mar 19, 2024
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