Bloody GRS-1

The day started so well. Surveyed 1.4km and really started to speed up the data input process. On the Topcon GRS-1 you have to change batteries roughly every 2 hours. Yes, this is a real pain. However, you can hotswop which is what I have been doing. On the 2nd attempt today, the device completely wiped my SD card and therefore wipe the Digiterra software. We had no choice but to return to the depot. I managed to undelete some of the data but it was seriously corrupted. Not good! I don't trust the data so have to re-survey the same stretch of road tomorrow. Beginning to regret we are using this device now and wish I had the ProMark 200 back. Still, patience is obviously needed. Game of tennis tomorrow night after work. Want to sort my serve out. Nice!