Message-ID: <393D28D1.A1B6F213@netscapeonline.co.uk>
Date: Tue, 06 Jun 2000 16:37:38 +0000
From: "g3kev" <g3kev@netscapeonline.co.uk>
Organization: Netscape Online member
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To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Re: Copying CW
References: <E12yyDT-00049o-00@mserv1b.u-net.net> <001701bfcfa9$ea7322e0$1fd499d4@w8k3f0>
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Dick Rollema wrote:

> To All from PA0SE
>
> Mike, G3XDV, wrote
>
> > I have been playing around with feeding differently derived audio into
> > the two halves of stereo headphones with some interesting results.
> > I will report in detail when the tests are complete. In short, it is
> > certainly possible to improve headphone reception, both in terms of
> > close-in selectivity and resistance to static.
>
> I have tested "pseudo-stereophonic" reception of CW by feeding the halves of
> a stereo headphone via series tuned circuits resonating at  1002 and 842Hz
> (922 ą 80Hz)  respectively.
> At first the result  was pleasant; it sounded like being in a room with the
> wanted 922Hz signal in the centre. But it did not take me long to find out
> that it contributed absolutely nothing to the readibility of signals under
> difficult conditions.

You are correct, this has all been tried before years ago and proved useless.
The only solution is to become a compentent cw operator. You will then be able
to read cw under all adverse conditions. which is often the case of HF/LF. And
cw is far from DEAD. It is virtually impossible to find a slot
on the cw portion of any band  especially during a contest. How about a high
speed cw contest on 136 khz.
Is there such a thing as a BPSK, PTOR or PSK31 contest ???????????
G3KEV


>
>
> It proved again that our sophisticated ear/brain system cannot be helped by
> such primitive contraptions.
>
> 73, Dick, PA0SE