Message-ID: <005401bf0a6b$5f1d5700$5096b38f@w8k3f0>
From: "Dick Rollema" <d.w.rollema@gironet.nl>
To: "LF-Group" <rsgb_lf_group@blacksheep.org>
Subject: LF: Re: Doctoral thesis SM7CMYF
Date: Wed, 29 Sep 1999 13:10:40 +0200
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To All from PA0SE

Vaino, OH2LX wrote:


>In case someone else is interested, let me refer to the
>doctoral thesis of Peter, SM7CMY with a title:
>'Signal Detection in Noise with special reference to
>telegraphy', University Hospital Lund, Sweden, 1994.

It was Peter, DF3LP, who first mentioned this document on the reflector and
with the help of
PE1AIO, who works at the Leyden University, I was able to obtain  copy. But
it took many months before it arrived..

It is very interesting and describes a series of tests, conducted with the
help of
experienced radio amateurs,  with purpose to find out how several factors  -
like signal to
noise ratio, sending speed,  frequency of the audio note etc. - affect
detection and recognition of morse code signals. Also electronic morse
decoders were tested.  But radio technical  aspects are not covered.


The thesis has the code ISRN LUMEDW/MERL -- 1038 -- SE


Thanks to Peter for the tip.

73, Dick,  PA0SE