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Altitude vs. Barometric pressure

 
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  #92  
Old 11-24-2013, 10:27 PM
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Re: Altitude vs. Barometric pressure

Quote:
Originally Posted by RTK View Post
The kestrel will give you absolute or station pressure.
????? Mine will show Barometric pressure unless I set the reference altitude to 0.
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  #93  
Old 11-25-2013, 12:21 AM
RTK RTK is offline
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Re: Altitude vs. Barometric pressure

Correct, some are different than others, but if I set my altitude to 0 then it reads station pressure/absolute pressure.
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  #94  
Old 07-16-2014, 11:38 PM
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Re: Altitude vs. Barometric pressure (OR...)

OR... you can buy a Horus/Kestrel 4500 with the newer Applied Ballistics program and let it figure all this out for you, including such other niceities as coriolis effect, wind drift, etc. That device plus an accurate laser rangefinder will give you a very accurate firing solution.

"Altitude density" is the actual term for this barometric pressure conundrum. And that, of course is affected greatly by temperature and humidity.
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