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  #1  
Old 03-01-2011, 07:53 AM
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Kentsrv7a Kentsrv7a is offline
 
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Location: Yorktown, VA
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Default GTX-327 Altitude Display

Can anyone tell me if the Pressure Altitude display on the GTX-327 should change as I change the altimeter setting on my GRT HS? I have the GRT wired from pin 1 to pin 19 on the GTX-327 as per the manuals. I also have the GRT set to 9600 baud and Fuel/Air Z format for Serial port 6. On the GTX-327 I have it set to FADEC w/ ALT on RS232 Input Ch 1. Altitude is displayed on the transponder but does not change as I change the altimeter setting.
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  #2  
Old 03-01-2011, 08:18 AM
Moura Moura is offline
 
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I believe the 327 keeps the 1013 pressure setting regardless of what you input in your altimeter.
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  #3  
Old 03-01-2011, 08:23 AM
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Altitude reporting is based on 29.92 and does not change.
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  #4  
Old 03-01-2011, 11:33 AM
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Kentsrv7a Kentsrv7a is offline
 
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Smile Thanks!

I checked at lunch and sure enough, putting 29.92 in the GRT EFIS matches the altitude on the GTX-327. Thanks for the insight!

Kent
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Dual Garmin G3X Touch w/ GTN-650
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  #5  
Old 03-01-2011, 02:45 PM
Ron B. Ron B. is offline
 
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One would think it would have to be set up that way as if someone inadvertantly had the wrong setting selected (way off) ATC would be dealing with a huge problem.
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