Free web-based tutorial courses…. can be found at: http://42123198102.learn.com/learncenter.asp?sessionid=3-DA5FF2BE-50C5-4D66-A10C-778FCF6F5CD0&DCT=1&id=178426&page=1 and then by clicking on the “FREE” TUTORIALS icon on the bottom left of the screen. The introductions to GPS and GNSS come highly recommended!

Yesterday I was out training on a very muddy site in Cheshire. The site is using Trimble GNSS kit for surveying and have also been using machine control at earlier stages in the earthworks.   The Base GNSS receiver is an SPS851 with the data logging option enabled in it. With the data logging option enabled it is possible to log raw GNSS data that can be post processed using RINEX data from the Ordnance Survey to obtain an accurate National Grid fix. A couple of questions arose during the training. Firstly what would happen if the SPS851 is powered down whilst it is… Read More