- The most recent issue to be published was 128
- For further information, please see Publishing/Despatch Schedule
- Database last updated on Mon, 18 Nov 2024 22:44:35 +0000
- Online access is currently available for all issues. Some of
the older issues are bit-map scans rather than digital copies.
journal scans.
- Online voting for CREG articles was withdrawn in June 2022. For info see
Voting for CREG articles
Contents of journal 49 September 2002
This page may take a few
seconds to load. Please wait ...
- CREG Journal
(PDF 4.4MB) Individual articles may be available below
- Contents
-
- Newssheet
- Jean-Jacques Fauchez; Heyphone Documentation; Next Field Meet; Hidden Earth 2002; Cave Surveying Group Field Meeting; Annual General Meeting; An update on the CREG Journal CD-ROM; Diary Dates.
-
- We Hear...
- A miscellany of odds and ends, and rumours, but no scandal (we hope). In fact, almost anything that might be of interest to readers but which might perhaps not go well as a Letter to the Editor.
-
- HeyPhone Testing at Malham Cove Flood Rising
- Members of the Cave Diving Group recently tested the HeyPhone in an airbell. Adrian Hall reports, with additional material from Pete Allwright, Bill Whitehouse and John Cordingley. Reprinted by permission from the BCRC Newsletter.
-
- Letters to the Editor
- We have items on patents, radiolocation in flooded passages and System Nicola.
-
- Web Watch
- Peter Ludwig has spread his net wide.
-
- Can You Patent an LED Flashlight?
- In CREG Journal 48 Henry Schneiker asked for information from readers about early LED power controllers in the context of patents for LED flashlights. Here he discusses the issues further.
-
- Speleonics
- Henry's question led to an e-mail discussion on (principally) the US patent system. Contributions summarised by John Rabson.
-
- Speleonics Meeting
- At the 2002 NSS Convention in Maine, on June 24, 37 cavers from the Communications and Electronics Section met to discuss the progress of their projects. Brian Pease summarises their presentations.
-
- An Electronic Detector for Fluorescein
- Fluorescein is normally detected with active carbon receptors. This can involve a lot of work. Erwin Lokhorst offers a cheaper and easier way.
-
- A Channel Sounder for Sub-Surface Communications
- Part 3 - Spectrum Survey: Preliminary Results. Channel-sounders are used to test radio-wave propagation in a specified band, often the short-wave (HF) or one of the UHF 'cell-phone' bands. In this series of articles, David Gibson describes a new design of sounder that operates from 0 - 200kHz with a wide-band induction loop antenna. The sounder can also be used as a spectrum analyser, and is intended to be part of a wideband adaptive digital communications system.
-
- Cave Radio Notebook
- 51: Cave Radio Using a Broadcast Carrier, 52: A Goniometer for Angle Measurement (John Hey), 53: Cave Radio Notebook Index. Edited by David Gibson.
-
- Variable-Frequency Cave Radio Tests
- In some locations the standard cave radio frequency of 87kHz suffers significantly from co-channel interference or poor propagation. John Rabson reports on tests using other frequencies at Bull Pot o' the Witches and Kingsdale Master Cave.
-
- A Practical White LED Lamp for Caving
- Stuart France presents a flexible design for an all-LED lighting system which is compatible with common caving battery systems. It fits into CEAG and Oldham heads and utilises their off-pilot-main rotary switches and recharging sockets.
-
- Meet the CREGgies (7)
- Rosy Rabson interviews Steve Laugher, John Wilcock and Bill Purvis.
-
|
View Contents:
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.
Click here for further information.
Searching
To Search our pages using Google, type a search
string in the box at the top of the page and hit your Return key
You can also search our publications catalogue at the British Caving Library
The CREG Journal Search Engine is a new, powerful search engine which will, sometime, be extended
to cover Cave & Karst Science. We have a keyword search facility on our Cave Science Indexes pages but this may be rather out-of-date.
|
For staff use: Link to Database
Show/Hide
download figures next to each item (if available and non-zero; you might need to refresh page first). Counters last
reset on Thu 03-Jan-2019 17:29:28 +00:00. The figures are non-unique
click-throughs.
|