Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mk06.r1000.mx.aol.com (Internet Inbound) with ESMTP id 15D55380000BD; Tue, 27 Nov 2012 12:07:28 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1TdOcA-0005wP-6H for rs_out_1@blacksheep.org; Tue, 27 Nov 2012 17:06:30 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1TdOc9-0005wD-MW for rsgb_lf_group@blacksheep.org; Tue, 27 Nov 2012 17:06:29 +0000 Received: from out1.ip05ir2.opaltelecom.net ([62.24.128.241]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1TdOc7-0007B8-FV for rsgb_lf_group@blacksheep.org; Tue, 27 Nov 2012 17:06:28 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqIHADbytFBcF/mN/2dsb2JhbABFgkmDYKI1A4R4jgqEOoEKghkFAQEFCAEBAxYzAhwQAQEDBQIBAxEEAQEKIQICFAEEGgYWCAYTCgECAgEBh2oDE64Dgj+QS4tRaYMugRMDjXiYTYJw X-IronPort-AV: E=Sophos;i="4.83,328,1352073600"; d="scan'208,217";a="401101445" Received: from host-92-23-249-141.as13285.net (HELO xphd97xgq27nyf) ([92.23.249.141]) by out1.ip05ir2.opaltelecom.net with SMTP; 27 Nov 2012 17:06:06 +0000 Message-ID: <001e01cdccc1$7bab7100$0501a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <000e01cdccaf$7c90f430$0501a8c0@xphd97xgq27nyf> <8CF9AD2D48B5D25-21FC-1F898@webmail-m143.sysops.aol.com> Date: Tue, 27 Nov 2012 17:06:03 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 3.8 (+++) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Markus The Luxemburg effect could be in your own back yard, the Rusty Nail syndrome, rectification taking place, dissimilar metals with antennas and plugs/sockets etc Using small active antennas in strong signal environments could also be the cause that you and others are getting. I am not convinced by those that think it is the Luxemburg effect [...] Content analysis details: (3.8 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 3.8 AXB_XMAILER_MIMEOLE_OL_024C2 AXB_XMAILER_MIMEOLE_OL_024C2 X-Scan-Signature: 9b622d5c6a961580a0f289e85f67bcca Subject: Re: LF: Luxemburg effect etc Content-Type: multipart/alternative; boundary="----=_NextPart_000_001B_01CDCCC1.7B49A1F0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=HTML_30_40, HTML_FONTCOLOR_UNKNOWN,HTML_MESSAGE 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: 3039ac1d618a50b4f3502551 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_001B_01CDCCC1.7B49A1F0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Markus The Luxemburg effect could be in your own back yard, the Rusty Nail = syndrome, rectification taking place, dissimilar metals with antennas = and plugs/sockets etc Using small active antennas in strong signal environments could also be = the cause that you and others are getting. I am not convinced by those that think it is the Luxemburg effect mal/g3kev =20 ----- Original Message -----=20 From: Markus Vester=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Tuesday, November 27, 2012 4:24 PM Subject: Re: LF: Luxemburg effect etc Mal, here in central Europe, muffled voices and music are audible on DCF = and HGA every night, and often during winter days as well. Yes I'm sure = it really is Luxembourg effect, aka ICM for ionospheric cross = modulation. I find it hard to believe that you can't hear it - maybe = you're lucky in that you are located further away from potential = ionospheric heaters. Best 73, Markus (DF6NM) BTW I'm using a resonant Marconi for receive, connected to the passive = mixer stage through a 30 dB attenuator. -----Urspr=C3=BCngliche Mitteilung-----=20 Von: mal hamilton An: rsgb Verschickt: Di, 27 Nov 2012 3:25 pm Betreff: LF: Luxemburg effect etc LF I would suggest what most are hearing is not the Luxemburg effect but = cross modulation, Inter Modulation, Rx front end overload all due to = poor antennas or poor Pre amps ahead of the Rx or the RX itself=20 Active uProbe antennas overloaded driving the preamp into non linear = mode. Some amateur band receivers are more prone to this than others.=20 I have never had this problem using resonated wire antennas as long = and as high as possible and NO preamps de G3KEV ------=_NextPart_000_001B_01CDCCC1.7B49A1F0 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable =EF=BB=BF
Markus
The Luxemburg effect could be in your own back = yard, the=20 Rusty Nail syndrome, rectification taking place, dissimilar metals with = antennas=20 and plugs/sockets etc
Using small active antennas in strong signal = environments=20 could also be the cause that you and others are getting.
I am not convinced by those that think it is the = Luxemburg=20 effect
 
mal/g3kev
 
 
----- Original Message -----
From:=20 Markus=20 Vester
Sent: Tuesday, November 27, = 2012 4:24=20 PM
Subject: Re: LF: Luxemburg = effect=20 etc

Mal,
 
here = in central=20 Europe, muffled voices and music are audible on DCF and HGA = every=20 night, and often during winter days as well. Yes I'm sure it really is = Luxembourg effect, aka ICM for ionospheric cross modulation. I find it = hard to=20 believe that you can't hear it -  maybe you're lucky in that you = are=20 located further away from potential ionospheric heaters.
 
Best = 73,
Markus=20 (DF6NM)
 
BTW = I'm=20 using a resonant Marconi for receive, connected to the = passive mixer=20 stage through a 30 dB attenuator.
 


-----Urspr=C3=BCngliche Mitteilung-----
Von: mal = hamilton=20 <g3kevmal@talktalk.net>
An: rsgb=20 <rsgb_lf_group@blacksheep.org>
Verschickt: Di, 27 Nov 2012 = 3:25=20 pm
Betreff: LF: Luxemburg effect etc

LF
I would suggest what most are hearing is not = the=20 Luxemburg effect but cross modulation, Inter Modulation, Rx front end = overload=20 all due to poor antennas or poor Pre amps ahead of the Rx or = the RX=20 itself 
Active uProbe antennas overloaded driving the = preamp=20 into non linear mode. Some amateur band receivers are more prone to = this than=20 others.
I have never had this problem using resonated = wire=20 antennas as long and as high as possible and NO preamps
 
de G3KEV
 
 
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