Return-Path: X-Spam-DCC: paranoid 1102; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_MESSAGE autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id t23LUhTt010581 for ; Tue, 3 Mar 2015 22:30:43 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1YSuLW-0007vm-8P for rs_out_1@blacksheep.org; Tue, 03 Mar 2015 21:27:18 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1YSuLV-0007vd-LZ for rsgb_lf_group@blacksheep.org; Tue, 03 Mar 2015 21:27:17 +0000 Received: from omr-m01.mx.aol.com ([64.12.143.75]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.85) (envelope-from ) id 1YSuLT-00006r-Gh for rsgb_lf_group@blacksheep.org; Tue, 03 Mar 2015 21:27:16 +0000 Received: from mtaout-mce02.mx.aol.com (mtaout-mce02.mx.aol.com [172.29.27.206]) by omr-m01.mx.aol.com (Outbound Mail Relay) with ESMTP id 1FC35704B519B for ; Tue, 3 Mar 2015 16:27:13 -0500 (EST) Received: from White (ipb21bee4a.dynamic.kabel-deutschland.de [178.27.238.74]) by mtaout-mce02.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id 4E91638000093 for ; Tue, 3 Mar 2015 16:27:10 -0500 (EST) Message-ID: <79E9B7CDCE854EF7A4BD78350AADCA8A@White> From: "Markus Vester" To: References: <8D223F0BDAE8A54-9F4-DBF78@webmail-vm035.sysops.aol.com> <003901d055e4$aad5ff00$0081fd00$@de> Date: Tue, 3 Mar 2015 22:27:01 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 12.0.1606 X-MimeOLE: Produced By Microsoft MimeOLE V12.0.1606 x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20140625; t=1425418033; bh=Q4AuYkdrifikRD8WuVSXsTJCkO8flHmu+uJxX+EBaxs=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=blhPUHqy9Jv6HcQMa9GGEnq8eYmIZufC59jllT5pgrvmrTlNpqbCTPqEwcrCBOh/A 89TnYshqc/g0lzzyc8cnLGdEUMNnkDViZKcEyGeAznGO9eQmNfhEut/4eZ6VJiUflA LIE6ZJHnD4adnc/z1ut5uO7ryE7CopoAVBtoRxaE= x-aol-sid: 3039ac1d1bce54f6272e6521 X-AOL-IP: 178.27.238.74 X-Scan-Signature: 14e68a9cb6dee915a96310ea9bf261c5 Subject: Re: AW: LF: VO1NA Tue-Wed Content-Type: multipart/alternative; boundary="----=_NextPart_000_000C_01D05601.2B327EF0" X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 2521 Dies ist eine mehrteilige Nachricht im MIME-Format. ------=_NextPart_000_000C_01D05601.2B327EF0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Joe & Joe, these are two separate effects:=20 The 0.1 Hz sidebands on strong amateur signals are created by DCF39's = telegrams, periodically activating the noiseblanker every 10 seconds. = They may increase during DCF's "hyperactive" periods, where telegram = blocks are much longer but still adhere to the 10 second pattern. There = are usually four such "bad" periods each day, currently at 3:18 - 3:38, = 9:15 - 9:35, 15:18-15:40, and a long one 21:18 - 23:42 UT (give or take = a few minutes). The splatter is so wide because the Burg transmitter is = apparently modulated by an unshaped rectangular FSK waveform (unlike = HGA22 which exhibits somewhat softer keying). The "fuzziness" on Joe's signal is obviously a real frequency = instability of the VO1NA transmitter, which seems to have started = sometime around 23 UT last night. After that, the DCF-induced sidelines = simply became less visible because they were smeared out along with the = main carrier signal. =20 Best 73, Markus From: Joe=20 Sent: Tuesday, March 03, 2015 8:02 PM To: rsgb_lf_group@blacksheep.org=20 Subject: AW: AW: LF: VO1NA Tue-Wed Hi Joe, Markus, =20 Markus you=C2=B4re right, I observed the spectrum during Joe=C2=B4s = fuzzy phase =20 DCF39 was splattering over the whole band with extreemly fieldstrength. When I was playing with the sdr-Iq i found, switching off the RF/NB = helps a little and switching on the IF/NR fixed the problem. =20 Joe, nice copy again, not so strong as the night b4. =20 73 Joe =20 ------=_NextPart_000_000C_01D05601.2B327EF0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Joe & Joe,
 
these are two separate effects: =
 
The 0.1 Hz sidebands on strong = amateur signals=20 are created by DCF39's telegrams, periodically activating=20 the noiseblanker every 10 seconds. They may increase=20 during DCF's "hyperactive" periods, where telegram blocks=20 are much longer but still adhere to the 10 second = pattern. There=20 are usually four such "bad" periods each day, currently at 3:18 - 3:38, = 9:15 -=20 9:35, 15:18-15:40, and a long one 21:18 - 23:42 UT (give or take a few = minutes).=20 The splatter is so wide because the Burg transmitter is=20 apparently modulated by an unshaped rectangular FSK waveform = (unlike HGA22=20 which exhibits somewhat softer keying).
 
The "fuzziness" on Joe's signal = is obviously a=20 real frequency instability of the VO1NA transmitter, which seems to have = started=20 sometime around 23 UT last night. After that, the DCF-induced sidelines = simply=20 became less visible because they were smeared out along with the = main=20 carrier signal.  
 
Best 73,
Markus
 

From: Joe
Sent: Tuesday, March 03, 2015 8:02 PM
To: rsgb_lf_group@blacksheep.org= =20
Subject: AW: AW: LF: VO1NA Tue-Wed

Hi=20 Joe, Markus,

 

Markus=20 you=C2=B4re right, I observed the spectrum during Joe=C2=B4s fuzzy=20 phase

  

DCF39=20 was splattering over the whole band with extreemly=20 fieldstrength.

When=20 I was playing with the sdr-Iq i found, switching off the RF/NB helps a = little=20 and switching on the IF/NR fixed the problem.

 

Joe,=20 nice copy again, not so strong as the night b4.

 

73=20 Joe

 

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