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Subject: Re: LF: IEE Paper
From: "Hans-Joachim Brandt" <hajo.brandt.dj1zb@t-online.de>
To: rsgb_lf_group@blacksheep.org
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Date: 24 Jul 2002 10:50 GMT
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Dear Andy, 

please do not forget to mention that "the modern achievements of wire bound telecommuinications techniques" and the amount of unwanted radiation which is going to become generally accepted may totally destroy all these new sensitive techniques for radio communication. 

I guess this comment will also be supported by RSGB and other radio societies.  

73 Ha-Jo, DJ1ZB

"Talbot Andrew" <ACTALBOT@mail.dstl.gov.uk> schrieb:
>I have been asked by RSGB to write a paper for a forthcoming conference
>"Getting the Most Out of the Radio Spectrum" sponsored by the Institute of
>Electrical Engineers (IEE), to be held 24-25 October 2002 At the IEE, Savoy
>Place. London.
>
>The paper (to be presented as a poster session) will be entitled  "Amateur
>use of novel signaling methods at low frequencies" and I will cover the
>means by which we have used very low bandwidth signalling methods to
>overcome problems with low powers and inefficient antennas, and making use
>of the stable path at these frequencies for long distance signalling.
>Starting from SlowCW through 7FSK / Jason and WOLF.
>
>As it is a poster session, pictures will go down well so some SMT Hell
>screen shots will appear as well.
>
>What I would like some help with is this:  During the transatlantic tests,
>weren't various discoveries made about the stability of the path which were
>related to ionospheric stability ?    I believe some ideas were discussed
>regarding skywave propagation and different modes.   Has anyone got a
>summary of what was discovered - and could this be described as hitherto
>unknown information.
>
>It would be particularly rewarding and do our service a lot of good if it
>could be shown that amateurs have made some new discoveries and research in
>this area, or have tried techniques that have hitherto not been used - such
>as back in the days of the 1920s when the commercial interests were
>abandoning LF for HF.  The paper 'has to refelct the title of the
>conference' so I need to demonstrate that we are making the most of the LF
>bands.   Comments by the reviewers of the abstract are quoted below :
>
>
>"Paper to give conclusions as to the way forward for further development of
>this technique"
>
>"Use by the amateur service of low speed signalling at LF to develop
>signalling protocols and explore propagation phenomena. Interesting research
>at increasingly unused frequencies.  Such research may help to characterise
>these frequencies and expand their potential use.  It is anticipated that
>this will be the thrust of the paper. Propagation events are noted, it is
>asked that these be characterised, and considered for potential uses, and
>how predictable they currently are. It is requested that any potential
>applications that have been evaluated or considered are covered in the final
>report"
>
>Ideas please.  The deadline for submission of the paper is 13 August so
>there are a few weeks yet..........
>
>Andy  G4JNT
>
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