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From: "Alan Melia" <alan.melia@btinternet.com>
To: <rsgb_lf_group@blacksheep.org>
References: <4FA04D47.6070701@iup.uni-heidelberg.de>
Date: Tue, 1 May 2012 23:29:25 +0100
MIME-Version: 1.0
Subject: LF: Re: Basic LF understanding
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Hi Stephan to be afir anyone starting needs to read Riks pages and if they
dont understand just ask. I am not in favour of "nursury" guides as you
finish up wasting a lot of time saying well that not really how to do it.
The other sources are pre internet and are the early LF sourcebook and the
LF exprimenters guide (by Peter Dodd)

The thing is every one if different, has different starting knowledge,
different locations, with different local conditions and QRM. Starting is a
matter of conquoring those or at least recognising them. A read of the
waterfall dispay pages (I cant remember what Rik calls them is an essential
starter) The DSP waterfall is so usefull for identifying problems it should
not be avoided in the early satges and even if the QRM is bad and the
receiver deaf it will probably aid you to hear something. One of the most
difficult part is finding a receiver that has any performance down there out
of the standard Amateur range. A lot that advertise they go from DC to
1300MHz are very deaf below 500kHz or even 2MHz.

If a newcommer wants something less daunting than the occasional maths in
Rik's pages them  Dave Picks pages at http://wireless.org.uk/geton136.htm
are to be recommended. Dave being one of the true pioneers of LF in the UK.

Alan G3NYK


----- Original Message ----- 
From: "Stefan Schäfer" <Stefan.Schaefer@iup.uni-heidelberg.de>
To: <rsgb_lf_group@blacksheep.org>
Sent: Tuesday, May 01, 2012 9:53 PM
Subject: LF: Basic LF understanding


> LF!
>
> Has someone a very good link to basic understanding about LF? I mean the
> LF amateur radio stuff, all which one has to learn when starting rx-wise
> in our hobby! Maybe some ideas and examples, a good compliation. Not to
> complex and focusing on 137 kHz amateur radio?
> For newcomers in the "LF-transmit-world" i recommend ON7YD's page
> http://www.strobbe.org/on7yd/136ant/
> Is there maybe something for receive newcomers?
>
> A collection of some links may help as well...
>
> Thanks in advance.
>
> 73, Stefan/DK7FC
>