Message-ID: <158CD80870EF49A792DE0FB2180BA998@AGB>
From: "Graham" <g8fzk@g8fzk.fsnet.co.uk>
To: <rsgb_lf_group@blacksheep.org>
References: <A093CA519A434279B8D64D7CC614B154@inspiron>
In-Reply-To: <A093CA519A434279B8D64D7CC614B154@inspiron>
Date: Wed, 5 Sep 2012 21:17:16 +0100
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Subject: Re: LF: MF acty
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Classic  system Lee !

What feeder  are you  using , twin screened or  coax ?

73 -G.


--------------------------------------------------
From: "Lee Hudson" <hudsonville@btinternet.com>
Sent: Wednesday, September 05, 2012 6:48 PM
To: <rsgb_lf_group@blacksheep.org>
Subject: RE: LF: MF acty

> Hi Stefan,
>
> Setup here is fairly straight forward.
> MiniWhip @ 5m height, 12m away from the house. RX is a Perseus.
>
> QTH is on the southern edge of Harrogates residential area.
>
> Noise level here is actually quite high. Most of which is radiated from 
> the
> house wiring. I've experimented with various ways of reducing this noise
> over the last 4 years and the best seems to be isolating the main feeder 
> at
> both ends. The Miniwhip is powered via a solar charged battery and a good
> earth at its base. The difference with and without the above is 20dB! This
> makes the difference between hearing nothing, and almost everything HI!
>
> Isolation transformers are 7 bifilar turns on a BN-73-202 core.
>
> Since you are plotting consistent data, please ignore any reports from 
> last
> night as one of the isolators was in use on another project. Those 
> received
> during the daytime today and forward are OK.
>
> I shall leave everything running so you can gather as much data as you 
> need.
>
> 73,
> Lee M0LMH.
>
>
> -----Original Message-----
> From: owner-rsgb_lf_group@blacksheep.org
> [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Stefan Schäfer
> Sent: 05 September 2012 16:38
> To: rsgb_lf_group@blacksheep.org
> Subject: Re: LF: MF acty
>
>
> Am 05.09.2012 17:19, schrieb Stefan Schäfer:
>> [...]but as soon as the sunrise comes, no signals are detected in the
>> UK while the levels are 25 dB above the decode limit in the night.
> Ehm, no, i've concentrated to much on the plot of G0KTN while writing
> that. M0LMH even get's daytime decodes on the lower limit, maybe having
> a somehow better RX-system+location(?)...
>
> 73, Stefan
>
>