This file is not intended to be read by humans. Please go to the formatted index

# format auto-updated on access: Mon 27-Nov-2017 11:30:03 +01:00

CREG Journal
Contents. (This is a bit-map scan).

Field Pattern of a Small Magnetic Dipole
David Gibson presents a computer-generated plot of the near and far-fields and the transition-zone between them. (Front cover diagram).

A Guide-Wire Communications System
Dick Glover gives the background to the early development of cave communications equipment.

Digestive Biscuits, FX2s and Abseiling
David Gibson muses on biscuits and gravity-powered lighting.

Tips for Using Ni-Cd Cells
Brief notes on charging and potting of NiCd cells, by David Gibson.

Notes on a Laser Gyrocompass
Can a gyrocompass be used in an electronic surveying instrument? Notes by David Gibson.

Accuracy Problems in Ultrasonic and Light-beam Rangefinders
Rangefinders based on 'time-of-flight' measurements may not always be accurate. Notes by David Gibson.

Improving Directivity in Ultrasonic Rangefinders
David Gibson explains how a parabolic reflector aids focussing.

A Laser Rangefinder
David Gibson outlines the design of a 'time-of-flight' opto-electronic rangefinder.

How Big Should a Loop Antenna Be?
Loop antennas do not necessarily need to be large; what is important is the signal/noise ratio. David Gibson investigates.

Uniform Survey Data
Stuart France invites a discussion on a standard format for recording survey data.

Reviews
Phil Ingham reviews some survey drawing packages and a paper on KIS.