Altimeter setting discrepancy

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Perch8808

Post subject: Altimeter setting discrepancy

Posted: Thu Apr 11, 2024 4:17 am

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Location: British Columbia, CA

I'm consistently getting a difference in Altimeter setting in MSFS vs PF3 with PF3 usually 50' - 100' lower sitting on the ground. It's not a big deal but I am wondering why the difference.

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pointy56

Post subject: Re: Altimeter setting discrepancy

Posted: Fri Apr 12, 2024 5:21 pm

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You may want to try changing the following option in your PF3.ini file: Change CalibratedAltitude=1 to CalibratedAltitude=0

Dave spent many hours looking at altitude mismatches in MSFS prior to releasing 3.22.0, and there were a number of internal changes to PF3; it looks as if he removed the option to 'Use Calibrated Altitude' from the MSFS tweaks page (I can't see it), so this could be a leftover from a prior release.

I'm sure that Dave will jump in when he is back online, but you may want to try this in the meantime.

Cheers,
Martin

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Perch8808

Post subject: Re: Altimeter setting discrepancy

Posted: Fri Apr 12, 2024 11:33 pm

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Thanks Martin I will try that

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Perch8808

Post subject: Re: Altimeter setting discrepancy

Posted: Sun Apr 21, 2024 3:02 am

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Your fix has worked Martin, thankyou. Using beta 3.22.8

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Dave March

Post subject: Re: Altimeter setting discrepancy

Posted: Sun Apr 21, 2024 10:54 am

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I'm sorry to say but that is a placebo effect

That option is now defunct and default to 'ON' within the code (it's hard coded) and has been that way since beta release 3.21.140

I noticed in you original post you mentioned noticing this whilst on the ground... if that is the case the likely cause is a difference between MSFS real local weather and that determined by PF3, using our own real weather source. This of course could rear its ugly head intermittently. Nothing that be done unfortunately as Asobo do not provide a weather interface, probably due to licensing terms and conditions from wherever they source the data.

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Perch8808

Post subject: Re: Altimeter setting discrepancy

Posted: Sun Apr 21, 2024 5:54 pm

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Dave March wrote: * Sun Apr 21, 2024 10:54 am
I'm sorry to say but that is a placebo effect

That option is now defunct and default to 'ON' within the code (it's hard coded) and has been that way since beta release 3.21.140

I noticed in you original post you mentioned noticing this whilst on the ground... if that is the case the likely cause is a difference between MSFS real local weather and that determined by PF3, using our own real weather source. This of course could rear its ugly head intermittently. Nothing that be done unfortunately as Asobo do not provide a weather interface, probably due to licensing terms and conditions from wherever they source the data.

Ha funny

There is some variation between what PF3 reports and what happen when I press "B" to set the altimeter automatically. Not enough to make a difference. I can live with it.

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