Attached here please find the NADCON datum grid that you will need to upload to the “System Files” folder on any data collector you wish to use NAD 27 as your coordinate system with. As a reminder, this system files folder is located with the same Trimble data folder that your Trimble Access projects reside in.
Once you have copied this file into your system files folder you should be able to select the NAD 27 coordinate system for a new job within Trimble Access and select a datum grid of NADCON.
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