Message-ID: <3857F7CB.25765D6C@netscapeonline.co.uk>
Date: Wed, 15 Dec 1999 20:19:24 +0000
From: "malcolmg3kev" <malcolmg3kev@netscapeonline.co.uk>
Organization: Netscape Online member
MIME-Version: 1.0
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Re: re-inventing the wheel
References: <1999121515051368199@zetnet.co.uk>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 8bit
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org
Sender: <majordom@post.thorcom.com>

Hi Peter. But there is still nothing to beat an old signal generator and an audio
amplifier and a piece of wet string. (Your illustration in the lf book). Why change
for the sake of it. It takes a lot skill to handle the drift.
73 Mal/G3KEV


Peter Dodd wrote:

> > The Broadcaster fraternity  and Admirality engineers pioneered, and have been
> > using the Low  frequencies for 50 years very successfuly. We Radio Amateurs in
> > 1999 are merely re-inventing the WHEEL and have a long way to go to catch up
> > with the commercial achievements.
>
> I have been privileged to edit the LF Experimenter's Source Book and
> the LF Chapter for the RSGB Communication handbook. The overwhelming
> impression that I have is the sheer innovation of the equipment
> designs that have emerged, from transmitter drivers to the class-D
> PA's, which most of us are using these days. Methods of weak signal
> detection, using readily available equipment and software is another
> example of this innovation.  The display of equipment at the last
> couple of HF Conventions has been a source of inspiration to many of us.
>
> > It  is back to basic theory and interesting as
> > long as one understands its limitations for the average radio amateur with a
> > small back garden and very poor antenna, and limited ERP.
>
> The amateur has succeeded in long distance because they ignored the
> limitations described above. This is similar to the QRP club ethos,
> where good operating can often make up for QTH limitations - the
> final component in a communications system is the bit between the earphones.
>
> --
> Regards, Peter, G3LDO
>
> <g3ldo@zetnet.co.uk>