[Lf] LF Experimenters Handbook]

[Andre' Kesteloot]

Mike Dennison wrote:

> Apologies for putting an advertisement on this group but I think most
> readers will want this information.
>
> The new RSGB LF Experimenters Handbook will be launched this
> weekend at the RSGB HF Convention. The contributions come from
> LF experimenters throughout the world and are edited by Peter
> Dodd, G3LDO. It's right up to date with Spectrograms of the recent
> transatlantic successes.
>
> The LF Experimenters Handbook replaces the LF Experimenter's
> Sourcebook and contains mostly new and updated material. Unlike
> the Sourcebook, it is properly bound. Time to throw away the old
> book!
>
> ===================
>
> Contents List
>
> Chapter 1, GENERAL
> The LF station at I5TGC
> LF operation from the Puckeridge Decca Station
> Portable operation from Amberley Industrial Museum
> Photo gallery
>
> Chapter 2, RECEIVERS
> LF receive systems
> LF converter from 136kHz to 14.136MHz
> Receiver amplifier and loop antenna for 136kHz
> A 136kHz high performance receiver converter
> A simple signal canceller for 136kHz
> The GW4ALG noise canceller
> Outline design for a narrow bandwidth LF receiver
> An audio clipper for headphones
> A sensitive loop antenna for 136kHz
>
> Chapter 3, TRANSMITTERS
> Crystal mixer exciters for 136kHz
> A transmitter for the 137kHz band
> A crystal/mixer for 137kHz transmitter
> A transmitter for 136kHz
> A 400 watt transmitter for 136kHz
> A 136kHz 1kW transmitter
> A 400 watt power amplifier using 572Bs
> LF power amplifiers using a bridge configuration
> Pulse width modulator for class D power amplifiers
>
> Chapter 4, LF ANTENNAS AND COILS
> LF vertical antennas
> A guide to LF Antennas
> An inverted L/V antenna for LF
> A helical antenna for 136kHz
> Balloon-extended vertical LF Antenna
> A limited space 136kHz antenna
> The loading coil
> Low frequency coil Q
> LF variometer design
>
> Chapter 5, SPECIALIST TECHNIQUES
> Narrow band techniques
> Receiving and transmitting slow CW
> Low speed Hellschreiber on LF
> PSK31: a new radio-teletype mode
>
> Chapter 6, TEST EQUIPMENT
> Simple test equipment for 136kHz
> The ScopeMatch tuning aid
> A field strength meter for the 137kHz band
> Measurement of antenna system impedance
>
> APPENDICES
> The earthing resistance of antennas
> General information
> Crossing the Atlantic on LF
> Data on the HIP4080 full bridge FET driver
>
> ====================
>
> The LF Experimenter's Handbook can be ordered from
> http://www.rsgb.org/shop (when you get into the book catalogue, take the
> link to General Technical).
>
> The book costs GBP 18.99 (RSGB members price GBP 16.14).
>
> Recommended for anyone using LF in Europe, America or Australasia,
> beginner or expert. The only place where you can find everything about
> LF in one book.
>
> Mike Dennison, G3XDV
> Publications Manager
>
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>
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>
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