BCRA > Special Interest Groups > CREG

The UK-based Cave Radio & Electronics Group (CREG) is probably the world's leading organisation of its kind. Its aims are "to encourage the development and use of radio communication and other electronic and computer equipment in caving and related activities". It was established in 1987 and, in 2011 celebrated its 25th year and its 75th published journal. Its followers includes cavers, radio amateurs, electronic engineers and professional & industrial organisations.

To achieve its aims, the Cave Radio Group aims to publish a regular Journal (ISSN 1361-4800) which provides a forum for people to discuss ideas and to exchange information. It occasionally produces other publications, and organises field meetings. CREG's main role is one of information gathering and dissemination, but it also has some items of equipment for hire.

You can catch up on recent news by visiting our News Forum page. If you would like to receive news items by email you can sign up to the CREG-Announce e-list.

CREG Info:  Information | CREG Journal | Contact Us | Subscriptions | Back-issues | CREG news Forum | CREG e-list | Cave Technology Symposium | HeyPhone
External links:  Members' Web Sites | Cave Radio Resources  | LED lamp Resources
You can check the status of CREG Journal production on the schedules page or enquire to the CREG editor.
CREG logo

Cave Radio & Electronics Group
  bullet Information about the Group 
Follow this link for further information about the Group: CREG journal, field meetings, the CREG award, equipment hire. Following a re-organisation at its 2007 AGM, CREG is longer an organisation with "members". CREG is merely the name given to the loose affiliation of BCRA members who have an interest in its activities. Its journal continues to be available on subscription to anyone who is interested, whether or not they are a BCRA member.
  bullet The CREG Journal 
The Cave Radio Group publishes a quarterly Journal (ISSN 1361-4800) which provides a forum for people to discuss ideas and to exchange information. A list of contents of CREG journals is available on this site and online access is available. A searchable index is now available as part of BCRA's Science Index. Our Bibliography of Underground Communications and CREG Journal Digest are now out of print and out-of-date and there are currently no plans for new editions.
  bullet Cave Technology Symposium 
In the past, BCRA's Special Interest Groups have organised an annual Cave Technology Symposium. All areas of cave technology – including surveying, data logging, communication, digging, cave detection, photography, lighting and explosives – were covered, and there were often field trips and workshop sessions as part of the weekend event. Unfortunately, no event has been staged since 2012. For updates, please see the CREG News Forum. Proceedings of previous events can be found here.
  bullet The CREG News Forum 
Its often very quiet, but the forum at bcra.org.uk/cregf is available for disucssion on CREG topics or to read online articles posted by members. Also see the CREG-Announce e-list at list.bcra.org.uk.

How to Contact Us

GENERAL ENQUIRIES: John Rabson creg-enquiries[at]bcra...
19 route des Etangs, Maré le Bas, 58800 Cervon, France. +33 (0)3
JOURNAL EDITOR: Rob Gill creg-editor[at]bcra...
61 Cross Deep Gardens, TWICKENHAM, TW1 4QZ. 020 8892 8852

Additional contact points are listed in our journal but, for general enquiries, please use one of the above addresses. Contact details for other BCRA SIGs are listed on the BCRA contacts page.

If you are running JavaScript, the above email links should function when you click on them. If they do not, please replace [at] with the @ symbol and add .org.uk to the end of the address.

  bullet Subscriptions & Back-issues caves.org.uk/payments/creg/  
  bullet HeyPhone bcra.org.uk/creg/heyphone/
The HeyPhone was designed by John Hey with the support of the CREG. Technically, it is a standard design of single-sideband radio, usually operating at 87kHz USB. Although it can be used with tuned induction loop antennas, it is usually operated with earthed electrodes separated by 25m to 100m. This technique of current-injection into the earth re-creates the trench communications of the First World War, but the transmission range is enhanced by the use of the 87kHz carrier in the LF band.
The HeyPhone
  bullet Speleonics caves.org/section/commelect/
Speleonics is the publication of the Communications & Electronics Section of the USA-based National Speleological Society (NSS). The web site has past issues of the magazine, and a list of links to other cave electronics sites, but the main activity of the Section is to operate an Internet discussion group via a mailing list. The Speleonics mailing list is not (currently) mentioned on the above web page; subscription requests should be made to lists.altadena.net/mailman/listinfo/speleonics.
  Web Pages of CREG Members David Gibson's digital slave unit
The Auriga cave surveying software
Martin Melzer's Radon caplamp
Martin Melzer's Radon caplamp
Graham Naylor's cave radio
  David Gibson (Cave Radio) caves.org.uk/radio
(Flashgun Slave Unit) caves.org.uk/flash
Dr David Gibson has a degree in mathematics and engineering from Cambridge University, and a PhD in "Cave Radio" from the University of Leeds. He currently works in the research and consultancy department of the UK's Mines Rescue Service. David has been involved with CREG since its inception, and is the technical editor of its journal. His Cave Radio page contains information about books he has published on cave radio and radiolocation, and links to other cave radio sites. In addition, his Slave Unit page describes the construction of a flashgun slave unit for cave photography, which is compatible with digital cameras.
  Luc Le Blanc www.speleo.qc.ca/Auriga
Luc is the developer of the Auriga Palm OS cave survey freeware designed for in-cave use as a smart and faithful survey notebook. With the Palm enclosed in a write-through protective pouch, data input is quick and easy; and a serial or Bluetooth link is available to connect existing electronic data acquisition devices. As the survey goes, Auriga displays the line plot in graphical form, reports statistics, helps spot and fix survey errors and assists in sketching to scale.This flexible field tool can also be used on the surface to display cave networks and to correlate its data with a GPS, connected or not. With monthly releases, Auriga evolves rapidly, and keeps gaining adepts in expeditions worldwide.
  Martin Melzer melzer.ch
Martin's cave-electronics projects include the Radon and Scurion LED headlights and the Auriga electronic cave surveying project. The web site describes these and includes many other articles on cave electronics. There is also a link to Peter Ludwig's Web Watch, which appears in the CREG journal. The Radon caving headlight is housed in a rugged waterproof aluminium case and utilises a 3W Luxeon LED. It has five brightness settings, is microprocessor controlled, does not drain the batteries when switched off and can be powered from a wide range of voltages. See below for further LED lamp resources.
  Brian Pease radiolocation.tripod.com
Brian Pease has designed a radiolocation beacon that uses a phase-locked loop to achieve a narrow bandwidth and greater range. His web site describes this and many associated experiments with radiolcoation equipment. Also see Brian's LED lamp.
  Cave Radio Resources
  For through-rock radio systems suitable for cavers, try the following links
  • HeyPhone (John Hey's design, used by the UK rescue groups)
    This is not commercially available, although the plans have been published so that you may build your own device. CREG has HeyPhones available for loan (See Equipment Hire on our Information page.
  • Système Nicola (Graham Naylor's design, used by some French rescue groups)
    This device is compatible with the Heyphone, but has been designed to be easier to manufacture.
  LED Lamp Resources
  For further information about LED lamps, try the following links

British Cave Research Association (UK registered charity 267828). Registered Office: The Old Methodist Chapel, Great Hucklow, BUXTON, SK17 8RG
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This page, http://www.bcra.org.uk/creg/index.html was last modified on Tue, 24 Nov 2015 11:06:50 +0000