of Compass Points 12

The journal of the BCRA Cave Surveying Group, June 1996


Snippets Letter

The Chelsea Surveying Ethos - John Stevens
Part one - discussion of techniques used

The Accuracy of GPS Receivers and an Attempt at Do-It-Yourself Differential GPS - Bob Thrun
Does DIY differential GPS work, and how long do you have to stand in one place to get good accuracy?