- 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- Online voting for CREG articles was withdrawn in June 2022.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 11
March 1993
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 6.0MB)
  Individual articles may be available below
- Contents. (This is a bit-map scan).
-
- Update
- Updates on past articles: Flashgun Slave, Radio Initiation of Detonators.
-
- Computers Underground
- Mike Bedford reviews two new ruggedised, hand held IBM compatibles.
-
- Extending Battery Duration by Heating
- David Gibson investigates.
-
- Which is the Best Frequency for Cave Radio?
- In part 1 of a series, Mike Bedford looks at the various types of interference present and presents circuits to assist in reviewing the LF / VLF bands.
-
- Guide-wire Communications Review
- David Gibson gives a roundup of the various techniques referred to as 'guide-wire' communication.
-
- Choosing a Battery Voltage
- How many NiCd cells should you string together into a battery? David Gibson shows there is a limit to this.
-
- Ferrite Rods as Receiving Antennas
- David Gibson explains the salient points of using ferrite cores and compares them with air-core antennas.
-
- How Long Should a Wire Antenna Be?
- Despite the virtual universality of loop antennas for cave radio, there may be something to be said for using short whips. David Gibson reports.
-
- Photography with a Bang
- Cameras have been known to explode underground. Chris Howes investigates why and what can be done to prevent it.
-
- Biasing Op-amps for Single-supply Circuits
- David Gibson gives circuit suggestions for using op-amps when you don't have a split supply rail.
-
- SURVEY V1.2 Cave Surveying Software for PC Compatibles
- Dave Irwin reviews this latest version of cave surveying software for the IBM.
-
|
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.
|
