- The most recent issue to be published was 127
- For further information, please see Publishing/Despatch Schedule
- Database last updated on Sat, 31 Aug 2024 19:32:15 +0100
- 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- Online voting for CREG articles was withdrawn in June 2022.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 24
June 1996
This page may take a few
seconds to load. Please wait ...
CREG Journal Archive:
This issue is available on paper as part of a two-volume archive,
covering issues 1 to 25.
To purchase it, please visit
Lulu.com.
- CREG Journal
(PDF 6.5MB)
  Individual articles may be available below
- Contents. (This is a bit-map scan).
-
- Some Experiments in Speech Bandwidth Reduction
- John and Hugo Rabson describe their progress with speech bandwidth reduction in software.
-
- The D-Q Beacon Receiver - Overview
- Brian Pease outlines the receiver for use with the radio-location beacon described in the last issue.
-
- Caving Electronic Projects at University
- The CREG is keen for university students to work on cave radio projects. Chris Trayner looks at what's already been done and the way forward.
-
- Emergency Caving Lamp Uses LEDs
- Mike Bedford presents a simple constructional project.
-
- An Introduction to Data Transmission
- An introduction to data communications as applied to cave radio, by David Gibson.
-
- Closed Circuit TV for Underground Use
- A circuit for transmitting video signals over cheap twisted pair cable is described by Nick Negus.
-
- The Talking Machine of Lamb Leer Cavern
- Bob Williams describes the re-discovery of Lamb Leer Cavern in the 1880s. This includes the first recorded use of a telephone in cave exploration.
-
- Cave Radio Notebook
- 10: skin depth, 11: speech band compression, 12: toroidal loop antennas, 13: the inverse cube law, 14: data communications.
-
- An Optimal NiCd Charger
- Mike Bedford outlines an intelligent charger based on the principle of 'optimal charging'. A flow diagram is given.
-
- Spectral Optimisation of a Loop Antenna Driver
- Derek Potter investigates whether it is possible to match the antenna tuning to the signal spectrum in order to maximise the output.
-
- Electronics in Surveying, part 2
- David Gibson elaborates on his article in the previous Journal. Global positioning and inertial navigation are discussed.
-
|
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.
|
