So many questions.

[V8Ian]

Last year during a Birdsville and Corner Country trip I simultaneously used a Navman My Escape and an entry model Tom Tom, they couldn't agree with each other and neither could agree with the Hema paper map (1:1,100,000?).
This year I will be driving from Boulia to Alice, I have purchased a Hema's Great Desert Tracks Simpson Desert sheet (1:1,100,000). I am considering purchasing this map in digital form.

Q 1. I have a Samsung Galaxy 7" tablet and a Sony Experia Z1 phone, both with a GPS on/off option. Is this a proper GPS or does it rely on the mobile network?

Q 2. Is the Hema digital map able to be downloaded to the above devices and/or the two GPS devices and used as a moving map?

Q 3. All of the above devices have Bluetooth, so if the map is loaded to one device, can it be viewed on the other devices per Bluetooth?

Q 4. If I download the file to my netbook, is it accessable, via Bluetooth, by the Navman/Tom Tom.

TIA, Ian.

[Saitch]

Ian
My brother has downloaded the Hema gear on to his Ipad but he's in NZ at the moment so I can't help you there. If the tablet is using the same GPS as some Iphones such as Android, then the accuracy will be around the 100m to 150m mark, maybe worse in hilly &/or thick canopy areas. I'm currently doing a job west of Warwick (Brrr Coldsville) & have ascertained the above accuracy using Google maps on my phone & knowing precisely were I am in relation to the cadastral boundaries i.e. +/- 100mm
Steve

[FeatherWeightDriver]

Tablet / phone accuracy on gps in perfect conditions should be around the 10-15m mark

[Saitch]

Tablet / phone accuracy on gps in perfect conditions should be around the 10-15m mark

They'd have to be perfect conditions then as I was using my Android & the property owner was using his phone, which I have no idea what it was but was pretty flash, & they were both about 100m + out in location in a 600 acre open paddock & as mentioned, I had the benefit of knowing exactly where I was in relation to the Cadastre.
Steve

[Tombie]

What datum was each unit using?

[Saitch]

Good question but you'd think they were using GDA94.......YES but would they & how do you find out?

[Tombie]

WGS84 is what they should be on

Somewhere in the GPS setting (I'm unfamiliar with those units) should be the option to select the Ellipsoid model..

[Tombie]

That is of course if you're not using UTM

[V8Ian]

Can you answer any of my questions Tombie? Seems you have knowledge of the subject.

[slug_burner]

Last year during a Birdsville and Corner Country trip I simultaneously used a Navman My Escape and an entry model Tom Tom, they couldn't agree with each other and neither could agree with the Hema paper map (1:1,100,000?).
This year I will be driving from Boulia to Alice, I have purchased a Hema's Great Desert Tracks Simpson Desert sheet (1:1,100,000). I am considering purchasing this map in digital form.

Q 1. I have a Samsung Galaxy 7" tablet and a Sony Experia Z1 phone, both with a GPS on/off option. Is this a proper GPS or does it rely on the mobile network?

Q 2. Is the Hema digital map able to be downloaded to the above devices and/or the two GPS devices and used as a moving map?

Q 3. All of the above devices have Bluetooth, so if the map is loaded to one device, can it be viewed on the other devices per Bluetooth?

Q 4. If I download the file to my netbook, is it accessable, via Bluetooth, by the Navman/Tom Tom.

TIA, Ian.

Just had a look at the spec sheet for the Samsung and it states gps and GLONASS so yes it has GPS.

HEMA have an app that will run on the operating system of your tablet, Android, HEMA Explorer $49.99 it comes with maps for off line use.

Don't know about your Bluetooth questions, my initial gut feel answer is "unlikely".

Suggest you get onto HEMA and ask them a few questions.

Someone more knowledgeable might come along and answer your other questions.