Return-Path: Received: from mtain-mg06.r1000.mx.aol.com (mtain-mg06.r1000.mx.aol.com [172.29.96.206]) by air-mb06.mail.aol.com (v127_r1.1) with ESMTP id MAILINMB061-a6fc4b93d573100; Sun, 07 Mar 2010 11:33:55 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mg06.r1000.mx.aol.com (Internet Inbound) with ESMTP id 9F8E3380000B7; Sun, 7 Mar 2010 11:33:53 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NoJPe-0005wJ-Qr for rs_out_1@blacksheep.org; Sun, 07 Mar 2010 16:33:06 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NoJPe-0005wA-ES for rsgb_lf_group@blacksheep.org; Sun, 07 Mar 2010 16:33:06 +0000 Received: from imr-db02.mx.aol.com ([205.188.91.96]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NoJPc-0004hr-GB for rsgb_lf_group@blacksheep.org; Sun, 07 Mar 2010 16:33:06 +0000 Received: from mtaout-ma01.r1000.mx.aol.com (mtaout-ma01.r1000.mx.aol.com [172.29.41.1]) by imr-db02.mx.aol.com (8.14.1/8.14.1) with ESMTP id o27GWsJX000798 for ; Sun, 7 Mar 2010 11:32:54 -0500 Received: from Black (g229248221.adsl.alicedsl.de [92.229.248.221]) by mtaout-ma01.r1000.mx.aol.com (WebSuites/MUA Thirdparty client Interface) with ESMTPA id B60D0E0000AE for ; Sun, 7 Mar 2010 11:32:53 -0500 (EST) Message-ID: From: "Markus Vester" To: References: <4B93D1A1.3010006@gmx.com> <4C48E2031D53431D9F676A408802F59D@Black> In-Reply-To: <4C48E2031D53431D9F676A408802F59D@Black> Date: Sun, 7 Mar 2010 17:32:22 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6000.16480 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6000.16669 x-aol-global-disposition: G x-aol-sid: 3039ac1d29014b93d5353c3d X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: 8.97 kHz Grabber online (9 kHz line) Content-Type: multipart/alternative; boundary="----=_NextPart_000_0017_01CABE1C.24FECAC0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=5.0 tests=HTML_50_60,HTML_MESSAGE, MISSING_OUTLOOK_NAME 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-global-disposition: G x-aol-sid: 3039ac1d60ce4b93d5716c81 X-AOL-IP: 193.82.116.20 ------=_NextPart_000_0017_01CABE1C.24FECAC0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ah, maybe my answer missed your point - the peak in the frequency resp= onse is simply due to the preselection filter. Regards, Markus ----- Original Message -----=20 From: Markus Vester=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Sunday, March 07, 2010 5:27 PM Subject: Re: LF: 8.97 kHz Grabber online (9 kHz line) Hello Mike, this is most likely intermodulation from the 9 kHz raster in the Eur= opean MF and LF broadcast bands. Viewed in detail, it is not a single= carrier but a conglomerate of closely spaced lines, probably due to= non precise BC carrier frequencies. Best 73, Markus, DF6NM ----- Original Message -----=20 From: Mike.WE0H=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Sunday, March 07, 2010 5:17 PM Subject: Re: LF: 8.97 kHz Grabber online What is that big signal at 9.00kc? Mike WE0H ------=_NextPart_000_0017_01CABE1C.24FECAC0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
ah, maybe my answer missed your= point - the=20 peak in the frequency response is simply due to the preselection=20 filter.
 
Regards, Markus
----- Original Message -----
Sent: Sunday, March 07, 2010= 5:27=20 PM
Subject: Re: LF: 8.97 kHz Gra= bber online=20 (9 kHz line)

Hello Mike,
 
this is most likely=20 intermodulation from the 9 kHz raster in the European MF= and LF=20 broadcast bands. Viewed in detail, it is not a single carrier= but a=20 conglomerate of closely spaced lines, probably due to non precise BC= carrier=20 frequencies.
 
Best 73,
 
Markus, DF6NM
----- Original Message -----
From:=20 Mike.WE0H=
Sent: Sunday, March 07, 201= 0 5:17=20 PM
Subject: Re: LF: 8.97 kHz= Grabber=20 online

What is that big signal at=20 9.00kc?

Mike
WE0H

= ------=_NextPart_000_0017_01CABE1C.24FECAC0--