Date: Wed, 15 Aug 2001 03:09:00 -0700 (PDT)
From: "John Sexton" <computernetworks@go.com>
Subject: Re: LF: 183 carrier received in ZL
To: rsgb_lf_group@blacksheep.org
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Hi Bob,
It sounds as though you have found it. When this station is not visible, there is no chance of receiving amateur transmissions from Europe.
Europe 1 is situated at Saarlouis, France 06E41/49N17.
This is a 2MW station and as you say does not conform to the 9 kHz raster for ITU 1. To achieve very high modulation depth, they compress the normal dynamic range of speech so that the sidebands are rather dense, but this may not be observable.
There is an image of the modulation on my web site at: http://www.g4cnn.f2s.com

73, John, G4CNN


-----Original Message-----
From: "Vernall"<vernall@xtra.co.nz>
To: rsgb_lf_group@blacksheep.org
Date: Tue Aug 14 14:53:56 PDT 2001
Subject: LF: 183 carrier received in ZL

>Hi all,>
>I report quite good reception of a 183 kHz carrier around ZL sunrise this
>morning.  I presume it is the German broadcast station, as the frequency is
>relatively unique, not being on the 9 kHz raster of carrier frequencies for
>LF AM broadcasting in ITU Region 1 (the standard frequencies are 181 and 190
>kHz for that part of the band).
>
>I have a series of 3 Argo captures, which show some deep fades, but at best
>it is a very good "solid line" on Argo (30 second dot setting).
>
>I found the carrier frequency to be within 0.1 Hz of 183 kHz.  It would be
>good if a local amateur could confirm that the 183 carrier is very close to
>declared frequency.
>
>I was advised by Mike ZL4OL that sunrise/sunset times for mid August mean
>that the only dark path times for Germany to New Zealand are around ZL
>sunrise, and then for only tens of minutes.  183 carrier was received for
>much longer than that, but did build up and then drop out either side of the
>time for a dark path.  Reception of 183 around ZL sunset has been nil, but
>that is not surprising for current sunrise in Germany.
>
>There is perhaps a glimmer of hope for amateur QRP signals to make it
>between EU and ZL ????
>
>The ZL6QH trustee has made a request to the New Zealand licensing authority
>for the European 136 kHz band to be added to the existing low frequency
>permit.
>
>73, Bob ZL2CA
>
>


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