Altimeter calibration

[Obscurity]

Is there a way to calibrate the altitude guage on the offroad pages? Mine is definitely off by 100+ft

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[Jeffy56]

I don't know about calibration. However, true altitude may obtained via cell phone, Android App, "GPS Test". It does not require cell/internet service to function. It uses satellite. I drove pretty hard last Christmas....

 

[Jeffy56]

Just deduct the true reading from displayed. Not available on Apple that I know. Below, my home reading.

 

[autotragic]

Is there a way to calibrate the altitude guage on the offroad pages? Mine is definitely off by 100+ft

I'm going to ask a dumb question but what are you comparing it to? Another GPS source or something different?

 

[Ratbert]

I'm going to ask a dumb question but what are you comparing it to? Another GPS source or something different?

Maybe he's at sea level?

 

[Obscurity]

I'm going to ask a dumb question but what are you comparing it to? Another GPS source or something different?

In my case I was comparing it loosely to a project site I was on in South Georgia where I know the elevation is in the 80s but I was registering -20s. I'm not looking for it to be accurate to the inch or anything but it should be close

 

[tomk62]

I reported the same issue a few months ago. It's off by about 100 ft. I am roughly at sea level here in the SC lowcountry.

 

[Obscurity]

I reported the same issue a few months ago. It's off by about 100 ft. I am roughly at sea level here in the SC lowcountry.

In guessing no resolution yet?

 

[Obscurity]

I don't know about calibration. However, true altitude may obtained via cell phone, Android App, "GPS Test". It does not require cell/internet service to function. It uses satellite. I drove pretty hard last Christmas....

Cool app. I was using a different one. In this case I'm really just hoping to get the jeep in the ball park.

 

[tomk62]

In guessing no resolution yet?

Nope.

 

[Obscurity]

In my case I was comparing it loosely to a project site I was on in South Georgia where I know the elevation is in the 80s but I was registering -20s. I'm not looking for it to be accurate to the inch or anything but it should be close

I should have added that i'm basing the 80 ft on a topographic map from a land survey for the job site. It is likely that the jeep and the topo map are using different datum but they shouldn't be that far off. Also I shouldn't have been negative without a lot of engine trouble 8)

 

[autotragic]

I should have added that i'm basing the 80 ft on a topographic map from a land survey for the job site. It is likely that the jeep and the topo map are using different datum but they shouldn't be that far off. Also I shouldn't have been negative without a lot of engine trouble 8)

You can certainly have negative density attitudes. Which kind of has me wondering where Jeep is getting their attitude data from and if it's being corrected. It certainly doesn't seem like it's raw GPS data.

 

[Obscurity]

I would have guessed it was triangulated from satellite fixes just like I assume your lat-long is established. I assume that's how your phone would do it. Also I may have no idea what I'm talking about.

 

[Riverjeep]

I would have guessed it was triangulated from satellite fixes just like I assume your lat-long is established. I assume that's how your phone would do it. Also I may have no idea what I'm talking about.

No, I think you are right on in your assessment. It should be picking up the info by satellite just like your phone gps in which case barometric pressure has nothing to do with it. Have you tried comparing it to your phone info, my iPhone will give me altitude on compass app?

 

[Obscurity]

I have not but I'll try it on my errands this morning

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