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# format auto-updated on access: Mon 27-Nov-2017 11:29:51 +01:00

CREG Journal
Contents. (This is a bit-map scan).

The Spring '95 Field Meeting
Mike Bedford reports on our latest field meeting in the Royal Forest of Dean - photos.

CB Transverter Goes FM
Ian Drummond reports the successful tests on his CB to cave radio transverters using CEPT FM rigs.

Reception of LF and VLF Signals at Brinchcombe Level
The results of John Rabson's latest experiments.

The GB2CRO Talk-through Box
Notes from Nick Negus on the workings of this device.

Baseband Earth Current Experiments
A possible route to low cost effective cave communication. A report by Nigel Lovell.

Earth Current / Induction Field Experiments - part 3
Rob Gill describes his experiments on 27kHz at the field meeting.

Power Line Interference
Mike Bedford looks at power line interference and how to avoid it.

Cave Radio Notebook
6: Ferrite rods, 7: noise-cancelling antennas, 8: range & power, 9: magnetic field detector. Notebook edited by David Gibson, with contributions from Nick Negus and Chris Trayner.

A Design Procedure for Transmitter Loop Antennas
David Gibson describes how a design needs to take account of bandwidth and effective aperture.

Review: Fluorescent Lamp Driver
David Gibson reviews an application note from Electronics World.

R.F. Speech Processing
Mark Stone outlines some techniques.

The RALF Project
Mike Bedford describes a flexible approach to cave flash photography.

Bandwidth of Tuned Antenna does not Affect Performance
David Gibson shows that bandwidth may be set independently of effective aperture and is no longer a limit on performance of tuned antennas.

Update - ETSI 300 330 Signal Strength Limits
David Gibson reports the latest from the Radiocommunications Agency.