CREG Journal (ISSN 1361-4800)

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Contents of journal 69
December 2007

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CREG Journal 69 (0-24) (PDF 5.4MB)        Individual articles may be available below

This issue has a cover date of December 2007, but was actually published in February 2008.

 

Newssheet (3)

Cave Technology Symposium, Frequency of Publication, PDF Printing Problems, Fonts for URLs, Diary Dates.

 

The Wonder and Madness of WEEE and RoHS (4-6)

Stuart France offers a personal perspective on recent European directives affecting the disposal of waste electrical equipment and restricting the use of hazardous substances.

 

Web Watch (6)

Peter Ludwig offers another selection of web sites covering lighting, batteries, fuel cells and micro-power generation.

 

The Adventure Starts Here (7, 12)

Mike Bedford looks back at the original role-playing computer game and finds the predecessor to today's hyperlinked cave guides.

 

KSE Lights - Oldham Lamps for the 21st Century? (8-9)

Two new LED-based lamps have been launched in Europe for industrial, fire-fighting, and mining use. Mike Bedford puts them through their paces and compares them with LED caving lamps.

 

Calibrating the Electronic Compass/Clinometer (10-12)

Phil Underwood describes a method of calibrating his combined electronic compass/clinometer. The principles of operation and sources of error are discussed and data from a field trial are presented.

 

CREG Award 2007 (13)

We issue an annual award to recognise special contributions to the field of cave radio and electronics. David Gibson describes this year's award to Phil Underwood.

 

We Hear (14-15)

A round-up of new from the world of cave-related radio and electronics. Column edited by Mike Bedford.

 

Wet and Dry (15)

Mike Bedford introduces a couple of products.

 

An Electronic Inclinometer (16-19)

Ian Todd describes the development of a PIC-based electronic inclinometer which, it is claimed, is both easier to use and more accurate than a conventional instrument.

 

Speleonics (20)

Simultaneous invention (or re-invention in ignorance of something that already exists) occurs in many fields. The field of underground communications is not immune to this. Summary by John Rabson.

 

2007 Cave Technology Symposium (21-23)

Back in April 2007, BCRA's Special Interest Groups got together to organise a symposium. Cave surveying, electronics and the use of explosives in caving were discussed. David Gibson reports.

 

The Adventures of GREG (24)

Illustrations by Adrian Higgins with words by Mike Bedford.