To all: several people need to upload a backlog of a few days of data on their Grape 1 DRF system. Unfortunately, my own Grape 1 DRF suffered a corruption of the SD card several years ago (and also the Raspberry Pi I was using failed) ,so I don't have a way to test my approach on how to do this.
If anyone has a working procedure for the Grape 1 DRF that can upload all (or a selection of) the backlogged observations, please send it to me or publish it here. Several people have asked for this, and at the moment I don't have a tested solution to give them.
-tnx es 73 - Bill - AB4EJ