Hema HN5i Maps

Hello

The raster maps supplied with a Hema GPS as standard are small scale (250K and smaller scale). Not all tracks are shown on these scale of maps and in fact even larger scale maps (100, 50 and 25K) may not show all tracks...fact of life.

Updates (for raster maps supplied on Hema) are released every couple of years or so but it won’t necessarily mean the track you mention would be included. If it’s a well-travelled "tourist" route it may get picked up, but otherwise unlikely. You can submit track data to Hema if you think a track is worthy of inclusion on their next release (or if you find the position of an existing track is incorrect or has be re-directed).

There are a range of commercial and free maps available for Hema (OziExplorer that is) - simple case of copying them to the SD card into correct folder. But as mentioned these may or may not have tracks you are interested in.

It is also possible to make your own maps from Google Earth (or similar sat or air photo images) for OziExplorer/Hema Navigator etc - these come in very handy.... but that's another story.

GPS units of all types are navigation aids like paper maps and are not meant as a replacement for them (or any other Nav aid e.g compass). They should be used in association with other Nav aids as required....so maybe also get a paper map of a suitable scale for the area in question if that's what you think you need. There is no need to specifically limit yourself to one or the other. Having both means you will be better equipped for all circumstances. On the same token if you feel you don't need a GPS and can get by with a paper map that's fine.

Cheers
Greg

Hi Lloyd

It will depend on what map you have loaded in Ozi, as there are a number of maps that will cover the same area.

You can get more detailed maps from Map Land in Adelaide that have been produced for the Dept of Environment & Heritage (National Parks)

These are at a smaller scale and will give you more detail.

Here are a few example all of the Coffin Bay area, but at different scales.

Map 1, is the on the Hema Navigators and at the scale of 1: Million



Map 2 is the seamless map that is now on the Navigators at a scale of 1:250,000 and depending on what area you are viewing, does lack detail and even roads compared to the Natmap of the same scale.



Map 3 is the Natmap 1:250,000 scale that was used on the original HN5, but was zoned , so as to cut down on the file size when opened. The full Natmap seamless 1:250k map of Australia is over 8gb in file size, compared to only 3.71kb of data for Hema's own 1:250k Topo map. So as you can see, you not not have to be a genius to work out that the Natmap and Hema have the same data can not give the same data for a fraction of file size



Map 4 shows the greater detail from the 1:50,000 National Parks Map.



As for the Kimberley, the Hema HN5i will be great and for that area, should have all tracks marked that you will be able to travel on.



Cheers


Stephen