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| `--> Re: Altimeter?? Peter H. Coffin04-29-2010
|--> Re: Altimeter?? Peter H. Coffin04-28-2010
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Posted by Piperson on April 28, 2010, 6:53 pm


Driving many miles in other than flat land, I have often wondered how
high I was, and was I really going up hill or down (not always obvious
on gradual grades). Are there any automotive GPS units available which
incorporate an altimeter and suitable programming?

Posted by Chris Blunt on April 28, 2010, 8:55 pm


wrote:

>Driving many miles in other than flat land, I have often wondered how
>high I was, and was I really going up hill or down (not always obvious
>on gradual grades). Are there any automotive GPS units available which
>incorporate an altimeter and suitable programming?

The altitude readings on most GPS units I've used have never been very
reliable. You could probably pick up a real barometric altimeter on
eBay quite cheaply if you're that interested.

Chris

Posted by Peter H. Coffin on April 29, 2010, 4:25 pm


On Thu, 29 Apr 2010 08:55:19 +0800, Chris Blunt wrote:
> wrote:
>>Driving many miles in other than flat land, I have often wondered how
>>high I was, and was I really going up hill or down (not always obvious
>>on gradual grades). Are there any automotive GPS units available which
>>incorporate an altimeter and suitable programming?
> The altitude readings on most GPS units I've used have never been very
> reliable. You could probably pick up a real barometric altimeter on
> eBay quite cheaply if you're that interested.

GPS altitude is crap for "Am I at 2343 or 2351 feet", but perfectly fine
for "Not quite 2400 feet" levels of precision.

--
76. If the hero runs up to my roof, I will not run up after him and
struggle with him in an attempt to push him over the edge. I will
also not engage him at the edge of a cliff. (In the middle of a
rope-bridge over a river of lava is not even worth considering.)

Posted by Peter H. Coffin on April 28, 2010, 9:25 pm


On Wed, 28 Apr 2010 18:53:26 -0400, Piperson wrote:

> Driving many miles in other than flat land, I have often wondered how
> high I was, and was I really going up hill or down (not always obvious
> on gradual grades). Are there any automotive GPS units available which
> incorporate an altimeter and suitable programming?

Almost all automotive GPSs have some way to get to the computed altitude
and display it, though it may not be immediately obvious. Most Garmin
Nüvi units can put it on the main display (replacing the clock) when
not routing, and it can be gotten to on the satellite info page by
press-and-hold on the sat strength bars on the main (not map) screen.

There's several hiking units with actual pressure altimeters as well.

--
Life does not cease to be funny when people die any more than it ceases
to be serious when people laugh.
                -- George Bernard Shaw

Posted by 1hogrider on April 28, 2010, 10:16 pm


On 4/28/2010 6:53 PM, Piperson wrote:
> Driving many miles in other than flat land, I have often wondered how
> high I was, and was I really going up hill or down (not always obvious
> on gradual grades). Are there any automotive GPS units available which
> incorporate an altimeter and suitable programming?

I would recommend one of these-

> http://www.microtim.com/

They have several models. I would recommend the XB (extended battery).
I have one and can tell you it is EXTREMELY accurate and EXTREMELY
sensitive. When set to current local barometric pressure, I have found
it as or more accurate as an aircraft altimeter. In fact, I took a trip
with a friend of mine in a Twin Cessna 310 and he commented the MicroTim
was more accurate than his aircraft altimeter.

You can take the MicroTim, hold it at waist level and let it stabilize
for a few seconds. When you set it on the ground at your feet, the
altitude reading will change a few feet.

For the record. I do not work for or have any financial interest in
this company. I am only a satisfied customer.





--
Two most common elements in the universe- Hydrogen & Stupidity

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