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Contents of journal 76
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- CREG Journal 76 (1-28)
- This issue has a cover date of December 2011, but was actually published on 23 January 2012. Please see CREG Forum: Newsletter, December 2011.
- Newssheet (3)
- Publication Schedule, Back Issues, The creg-announce Mailing List, 2012 Cave Technology Symposium.
- We Hear (4-5)
- Mike Bedford brings us the latest to impact the world of cave radio and electronics: Audio Clips at the British Caving Library, RF Energy Scavenging, Acoustic Cave Survey, LED Photo Lights, Shielding the Disto X, Robotic Worm, Rope Testing, Thermo-generators.
- The Simplest Radiolocator (6-10)
- Brian Pease has developed a short-range radiolocation and communication device that offers ease of construction and operation. Ideal for depths of 20-30m, this simple and compact device also offers extended battery life.
- Cave Photography Using White LEDs (11-12)
- Stuart France has been watching the advance of pocket cameras and white LEDs and he now sees a convergence useful to cave photographers.
- ResCam and MineCam Updates (13-14)
- Peter Eggleston describes updates to ResCam, a lightweight CCTV system designed to support underground rescue and exploration, and MineCam, which permits high quality video recording with a 3D viewfinder and gyro stabilisation.
- Cave Technology Symposium 2011 (14-15)
- The fifth BCRA Cave Technology Symposium was held in Derbyshire on 9th April 2011. Rob Gill summarises the meeting.
- Two LED Video Luminaires (16-18)
- Peter Eggleston describes the use of a Huey Jann 50W LED module to make a battery powered focusable spot light to fit a tackle bag. He also describes a flood lamp using six Cree XM-L LEDs that, with eight Li-ion cells, doubles the light output and reduces battery mass by factor of three compared with a previous design.
- How to See Through Murky Water (19-23)
- Mike Bedford reviews potential methods of optical imaging in turbid water.
- Web Watch (24)
- Peter Ludwig delivers another amazing list of links, ranging from unbelievably fast cameras, super-hydrophobic coatings and innovative mosquito killers to dangerously powerful lasers!
- The Adventures of GREG (24)
- Illustrations by Adrian Higgins with words by Mike Bedford.
The journal of BCRA's Cave Radio and Electronics Group
(CREG) (ISSN 1361-4800) is published quarterly by the
Cave Radio & Electronics
Group of the British Cave Research
Association. CREG's aims are, by means of a regular Journal, other
publications and meetings, to encourage the development and use of radio
communications and other electronic and computer equipment in caving and
Annual subscriptions to the CREG journal are
available, and all back-issues are still in print. Online access is free
to all BCRA members and CREG subscribers. Others can purchase an annual
subscription or a monthly guest pass. See
CREG Payments for further
BCRA is a UK registered charity and is a constituent body
of the British Caving Association,
undertaking charitable activities on behalf of the BCA.
BCRA publishes a range of periodicals and books. For information about
subscriptions, joining BCA / BCRA, or exchanging caving publications with BCRA
please contact our membership office, see Contacts Page.
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