Do I need to have reception in the paddock for FarmWalker to work?

No. You do not need mobile phone reception to use FarmWalker. It connects to the WiFi on your phone and uses this to communicate. The data is stored locally on your phone and synchronised online to the FarmWalker Online website once an internet connection is available. Once your phone has uploaded the data you can log in to the FarmWalker Online website to view a FeedWedge and GPS Coverage Map visualising exactly where you walked.