Return-Path: Received: from rly-mc05.mx.aol.com (rly-mc05.mail.aol.com [172.21.164.89]) by air-mc07.mail.aol.com (v126.13) with ESMTP id MAILINMC074-d764b2f482a19d; Mon, 21 Dec 2009 05:04:40 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-mc05.mx.aol.com (v125.7) with ESMTP id MAILRELAYINMC056-d764b2f482a19d; Mon, 21 Dec 2009 05:04:28 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NMf1w-0000eH-UL for rs_out_1@blacksheep.org; Mon, 21 Dec 2009 09:58:20 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NMf1w-0000e8-HT for rsgb_lf_group@blacksheep.org; Mon, 21 Dec 2009 09:58:20 +0000 Received: from mx30.mail.ru ([94.100.176.44]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NMf6v-0001Sn-HV for rsgb_lf_group@blacksheep.org; Mon, 21 Dec 2009 10:03:31 +0000 Received: from [79.98.8.6] (port=10565 helo=EFREMOV) by mx30.mail.ru with asmtp id 1NMf6p-00089Y-00 for rsgb_lf_group@blacksheep.org; Mon, 21 Dec 2009 13:03:23 +0300 X-Nat-Received: 172.16.10.160 Message-ID: <003201ca8224$ccdcb3d0$8cd9160a@EFREMOV> From: "Andrey rn3agc" To: References: <38A51B74B884D74083D7950AD0DD85E828ACB3@File-Server-HST.hst.e-technik.tu-darmstadt.de> <346854e9698cbf94f4483c66682bb63b.squirrel@webmail.xs4all.nl> <4B2CDA00.6080504@att.net> <200912201058160899.2B6A2E1A@smtp2.numeo.fr> <005301ca8167$ac452e30$8cd9160a@EFREMOV> <74674232B5D144C187B6C6CAC1AC750B@Black> Date: Mon, 21 Dec 2009 13:02:47 +0300 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Spam: Not detected X-Mras: Ok X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Re: Re: "harmonics" Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 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-AOL-IP: 193.82.116.20 Hello Markus, Many thanks for an explanation. NB here in the receiver it is always switched off. Also I switched off and AGC, and reduced level of signals. But sidebands do not disappear at any variants :( 73 Andrey > Dear Andrey. > > here this is happening because the receiver's gain control or noise blanker > reacts on DCF39 or HGA22 telegrams. They normally occur every 11 seconds. The > receiver then modulates all signals in the passband, and gives them a set of > sidebands 1/11s = 0.09 Hz apart. > > Switching off AGC and NB will remove the sidebands on the signals completely, > but at the cost of an increased background from the original DCF FSK sidebands. > > Kind regards, > MArkus (DF6NM) > > > ----- Original Message ----- > From: "Andrey rn3agc" > To: > Sent: Sunday, December 20, 2009 12:28 PM > Subject: LF: "harmonics" > > > Hello LF, > > At strong levels of a signal such "harmonics" are formed here. > Somebody knows the reason of formation of these "harmonics"? > > 73 Andrey > >