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Contents of journal 33
September 1998
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- CREG Journal
(PDF 10.0MB)
  Individual articles may be available below
- Contents
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- Improvements to Caving Lamps
- David Gibson describes some existing 'high-tech' lamp drivers and introduces his 48-white-LED caving lamp.
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- Combating Earth Electrode Resistance
- John Rabson suggests how to obtain low resistance earth connections for use with a surface earth-electrode array.
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- Seriously Tough Components: a Lesson from the Military
- Jeremy Davis takes a look at military electronic components and constructional techniques.
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- CREG at BCRC
- Richard Rushton reports on CREG's attendance at the recent BCRC conference.
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- Mount Royal Tunnel to Staten Island Railway
- Mike Bedford reviews two early papers on underground radio and one on capacitively-coupled SWTs.
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- Llangollen: Spring '98
- Mike Bedford looks back on our latest field meeting.
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- Millennium Mayhem and How to Avoid it
- John Wilcock outlines the problems and suggests some suitable cures.
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- Build the Cournouze Cave Radio for 137kHz
- Jean-Jaques Fauchez provides circuit details for his 137kHz Cournouze cave radio.
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- When Things go Wrong
- Rob Gill looks back over previous field tests and suggests that more structured planning would yield benefits.
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- A Broadband Survey Loop for the VLF & LF Spectrum
- Ian Drummond describes the construction of a loop antenna for measuring electromagnetic noise.
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- Thoughts on Dual-band Design
- John Hey considers modification to his 87kHz design to incorporate 136kHz.
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- Hand-on Antenna Tuning
- Practical guidelines on tuning a loop antenna by John Hey.
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- Web Watch
- Peter Ludwig brings us a mixed bag in his quarterly roundup of Web sites.
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- Cave Radio - the Lighter Side
- Rosy Rabson show-cases some of the less serious moments in CREG's past and offers a prize for the best photo-caption.
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- Greensites or Groansites?
- Dave Edwards looks back on a decade of the SWCC's Greensites Project, and shows that there's a long way to go before geophysical methods can reliably find caves.
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- The Umbrella Antenna
- In the quest for an ergonomically-friendly cave radio loop antenna, Mike Bedford suggests you use an umbrella and provides details of how to go about it.
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- Wet & Dry
- This quarter we investigate RF connectors with a view to cave electronics use. Column edited by Richard Rushton.
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- Letters to the Editor
- Feedback, debate, information & news - our readers have their say.
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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.
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