Message-ID: <03B7E80668194BAAA36211E8333F7BF7@ASUS>
From: "Ian" <i.frith@ntlworld.com>
To: <rsgb_lf_group@blacksheep.org>
References: <742823538.1262167.1541720344284.ref@mail.yahoo.com> <742823538.1262167.1541720344284@mail.yahoo.com>
In-Reply-To: <742823538.1262167.1541720344284@mail.yahoo.com>
Date: Fri, 9 Nov 2018 20:48:10 -0000
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Subject: Re: LF: 1476 kHz AM
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Good signal in IO92SD  using Inv L 140=E2=80=99 un-tuned into TS990, =
carrier S7 tones fully audible in CW mode.

73

Ian G4GIR

From: Markus Vester=20
Sent: Thursday, November 8, 2018 11:39 PM
To: rsgb_lf_group@blacksheep.org=20
Subject: LF: 1476 kHz AM

After the sad demise of all LW and MW broadcasts in Germany, a handful =
of pioneers came up who are operating legal low-powered medium wave =
stations in the context of a radio museum or for educational purposes. =
One of them is Ralph (DL2NDO, one of the participants in the legendary =
Donebach 137 kHz activation in 2002). He has obtained a transmitting =
license for 1476 kHz (former frequency of Vienna Bisamberg), built a 3 =
Watt AM transmitter, and with the help of a small team raised a =
quarterwave antenna on the Fraunhofer premises south of Erlangen =
(JN59MN21HF).=20

Yesterday they got on air for the first time, running a preliminary test =
transmission consisting of a switched 1000 Hz beeps (one second on, one =
second off, audio frequency locked to the RF carrier). This pattern will =
be continued for a few days, before they will eventually.take over the =
audio from the local DAB student radio "funklust".

The current test pattern is relatively easy to make out in the noise so =
it may be a good chance for some DX detections.  At night we've actually =
heard the beeps on Twente SDR and a couple of German Kiwi-SDRs. But I =
guess using narrowband signal processing techniques, the carrier and =
coherent tones coud make it much further. The carrier frequency is =
derived from an OCXO and is currently at 1476000.411 Hz.

Will anyone in the group take the challenge?

Best 73,
Markus (DF6NM)

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<HTML><HEAD></HEAD>
<BODY dir=3Dltr>
<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>Good signal in IO92SD&nbsp; using Inv L 140=E2=80=99 un-tuned into =
TS990, carrier=20
S7 tones fully audible in CW mode.</DIV>
<DIV>&nbsp;</DIV>
<DIV>73</DIV>
<DIV>&nbsp;</DIV>
<DIV>Ian G4GIR</DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV style=3D"FONT: 10pt tahoma">
<DIV>&nbsp;</DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A =
title=3Dmarkusvester@aol.com>Markus=20
Vester</A> </DIV>
<DIV><B>Sent:</B> Thursday, November 8, 2018 11:39 PM</DIV>
<DIV><B>To:</B> <A=20
title=3Drsgb_lf_group@blacksheep.org>rsgb_lf_group@blacksheep.org</A> =
</DIV>
<DIV><B>Subject:</B> LF: 1476 kHz AM</DIV></DIV></DIV>
<DIV>&nbsp;</DIV></DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: arial,helvetica,sans-serif; =
COLOR: black">
<DIV id=3Dyiv7812598129>
<DIV=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif; =
COLOR: black">
<DIV id=3Dyiv7812598129>
<DIV=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif; =
COLOR: black">After=20
the sad demise of all LW and MW broadcasts in Germany, a handful of =
pioneers=20
came up who are operating legal low-powered medium wave stations in the =
context=20
of a radio museum or for educational purposes. One of them is Ralph =
(DL2NDO, one=20
of the participants in the legendary Donebach 137 kHz activation in =
2002). He=20
has obtained a transmitting license for 1476 kHz (former frequency of =
Vienna=20
Bisamberg), built a 3 Watt AM transmitter, and with the help of a small =
team=20
raised a quarterwave antenna on the Fraunhofer premises south of =
Erlangen=20
(JN59MN21HF). <BR><BR>Yesterday they got on air for the first time, =
running a=20
preliminary test transmission consisting of a switched 1000 Hz beeps =
(one second=20
on, one second off, audio frequency locked to the RF carrier). This =
pattern will=20
be continued for a few days, before they will eventually.take over the =
audio=20
from the local DAB student radio "funklust".<BR><BR>The current test =
pattern is=20
relatively easy to make out in the noise so it may be a good chance for =
some DX=20
detections.&nbsp; At night we've actually heard the beeps on Twente SDR =
and a=20
couple of German Kiwi-SDRs. But I guess using narrowband signal =
processing=20
techniques, the carrier and coherent tones coud make it much further. =
The=20
carrier frequency is derived from an OCXO and is currently at =
1476000.411=20
Hz.<BR><BR>Will anyone in the group take the challenge?<BR><BR>Best=20
73,<BR>Markus=20
(DF6NM)<BR></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></BODY></HTML>=


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