of Compass Points 21
The journal of the BCRA Cave Surveying Group, September 1998
BCRA conference in Southport *.
- Editorial *
- Forthcoming Events *
CSG field meet, 17th-18th October *.
Andrew describes how the CSG renewals process works.
- Could you teach Surveying? *
Anyone interested in teaching surveying to those who ask?
Compass software update *
Press Roundup: *
Compass and Tape, Issue 42 *
Compass and Tape, Issue 43 *
Guy van Rentergem talks about the Leica Disto.
- Surveying Underwater Caves - some further
An update on the major underwater survey being performed in
- Errors In The Suunto Compass Used For Cave Surveying *
by Lang Brod
A detailed analysis of the accuracy of Suunto Compasses,
including experiments performed over several years. Lang explains the
mechanics of the device and discusses the various sources of error and their
- Instrument Lighting Update *
After 4 years use in the field the design of LED lights for
Suuntos is now quite refined and their reliability is proven.
- Radiolocation Errors Arising from a Tilted Loop *
David describes techniques for calculating radio locations, and
thus the errors that might be expected from inaccurate levelling of the