topic Getting ArcPad to record Z values that are MSL Height and other sundry questions in ArcPad Questions https://community.esri.com/t5/arcpad-questions/getting-arcpad-to-record-z-values-that-are-msl/m-p/523455#M3795 <HTML><HEAD></HEAD><BODY><SPAN>Good Morning,</SPAN><BR /><SPAN>I have seen a bunch of threads on this subject but they seem dated, so I am wondering if there is an up-to-date answer out there... </SPAN><BR /><BR /><SPAN>How do you get ArcPad to record heights that are from MSL?&nbsp; </SPAN><BR /><BR /><SPAN>In the GPS Heights tab on the GPS Preferences dialog box there are a couple of options.&nbsp; </SPAN><BR /><BR /><SPAN>The easy way would be to find the GEOID separation value at the location of the study area and use that.</SPAN><UL><BR /><LI> Wouldn't this result in the values being stored wrong?</LI><BR /><LI> What would happen if someone was to preform subsequent projection processes, or even GPS post processing... </LI><BR /><LI> I have seen a few people say this is not accurate, but then for the area I'm looking at the separation value has a range of 3mm which is far less than the standard deviation of the test points we've collected (+/- 10 cm after 25 minutes of run time)</LI><BR /><LI></LI><BR /></UL><SPAN>&nbsp; </SPAN><BR /><SPAN>The other method is to use a transformation.&nbsp; There is a tool to set them up but then it has a button to send to mobile device...?&nbsp; What if you are using an GPS like an SX Blue II and ArcPad is on your Windows XP/7 tablet?&nbsp; How do you "send" the transformation to it?&nbsp; When using this method does it even take the height from the GPS into consideration or does it just record the height of the geoide from the ellipsoid?</SPAN><BR /><BR /><SPAN>Any help or suggestions are very appreciated.</SPAN><BR /><BR /><SPAN>Take care,</SPAN></BODY></HTML> Wed, 25 Sep 2013 14:05:43 GMT CraigGraham 2013-09-25T14:05:43Z Getting ArcPad to record Z values that are MSL Height and other sundry questions https://community.esri.com/t5/arcpad-questions/getting-arcpad-to-record-z-values-that-are-msl/m-p/523455#M3795 <HTML><HEAD></HEAD><BODY><SPAN>Good Morning,</SPAN><BR /><SPAN>I have seen a bunch of threads on this subject but they seem dated, so I am wondering if there is an up-to-date answer out there... </SPAN><BR /><BR /><SPAN>How do you get ArcPad to record heights that are from MSL?&nbsp; </SPAN><BR /><BR /><SPAN>In the GPS Heights tab on the GPS Preferences dialog box there are a couple of options.&nbsp; </SPAN><BR /><BR /><SPAN>The easy way would be to find the GEOID separation value at the location of the study area and use that.</SPAN><UL><BR /><LI> Wouldn't this result in the values being stored wrong?</LI><BR /><LI> What would happen if someone was to preform subsequent projection processes, or even GPS post processing... </LI><BR /><LI> I have seen a few people say this is not accurate, but then for the area I'm looking at the separation value has a range of 3mm which is far less than the standard deviation of the test points we've collected (+/- 10 cm after 25 minutes of run time)</LI><BR /><LI></LI><BR /></UL><SPAN>&nbsp; </SPAN><BR /><SPAN>The other method is to use a transformation.&nbsp; There is a tool to set them up but then it has a button to send to mobile device...?&nbsp; What if you are using an GPS like an SX Blue II and ArcPad is on your Windows XP/7 tablet?&nbsp; How do you "send" the transformation to it?&nbsp; When using this method does it even take the height from the GPS into consideration or does it just record the height of the geoide from the ellipsoid?</SPAN><BR /><BR /><SPAN>Any help or suggestions are very appreciated.</SPAN><BR /><BR /><SPAN>Take care,</SPAN></BODY></HTML> Wed, 25 Sep 2013 14:05:43 GMT https://community.esri.com/t5/arcpad-questions/getting-arcpad-to-record-z-values-that-are-msl/m-p/523455#M3795 CraigGraham 2013-09-25T14:05:43Z