X-GM-THRID: 1221066930912263502 X-Gmail-Labels: rsgb lf X-Gmail-Received: 7e7fd5208600958b9298424a2ade577b94f9b26b Delivered-To: daveyxm@gmail.com Received: by 10.70.28.15 with SMTP id b15cs267425wxb; Sat, 25 Nov 2006 16:16:10 -0800 (PST) Received: by 10.67.22.7 with SMTP id z7mr9571969ugi.1164500170520; Sat, 25 Nov 2006 16:16:10 -0800 (PST) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id z40si15741003ugc.2006.11.25.16.16.08; Sat, 25 Nov 2006 16:16:10 -0800 (PST) Received-SPF: neutral (google.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Go7f7-00046K-6g for rs_out_1@blacksheep.org; Sun, 26 Nov 2006 00:14:25 +0000 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Go7f6-00046B-NL for rsgb_lf_group@blacksheep.org; Sun, 26 Nov 2006 00:14:24 +0000 Received: from imo-m23.mx.aol.com ([64.12.137.4]) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Go7f4-0003ot-G7 for rsgb_lf_group@blacksheep.org; Sun, 26 Nov 2006 00:14:24 +0000 Received: from MarkusVester@aol.com by imo-m23.mx.aol.com (mail_out_v38_r7.6.) id l.d30.baf654 (48576) for ; Sat, 25 Nov 2006 19:14:12 -0500 (EST) From: MarkusVester@aol.com Message-ID: Date: Sat, 25 Nov 2006 19:14:12 EST To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 8.0 for Windows sub 6104 X-Spam-Flag: NO X-Spam-Score: -0.3 (/) X-Spam-Report: autolearn=disabled,AWL=-0.836,HTML_MESSAGE=0.001,NO_REAL_NAME=0.55 Subject: LF: Grabber on fire Content-Type: multipart/alternative; boundary="part1_d30.baf654.329a3654_boundary" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.2 required=5.0 tests=HTML_20_30,HTML_MESSAGE, HTML_TAG_BALANCE_HTML,NO_REAL_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 Status: O X-Status: X-Keywords: X-UID: 3475 --part1_d30.baf654.329a3654_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Dear LF group, during many nights my grabber screen resembles a bushfire, with all those red Luxemburg stripes above the Budapest signal, like flames around an orange SXV... One of the most prominent ionospheric heaters is Solt, Hungary with two megawatts on 540 kHz. Almost every night around 23:13, it transmits a 1000 Hz audio test tone for a couple of minutes, very useful to quantify the cross modulation sidebands imposed on several stations. Due to the quadratic nature of the heating, there is also a pair of second harmonics, 2 kHz from the affected carriers. Sat 06-11-25, 23:10:45z to 23:13:45z f/kHz dBuV/m origin 138.83 ~71 DCF39 carrier (nighttime) 138.04 3 \ Turkish FSK 137.96 3 / 139kHz - 1kHz 137.83 15 DCF39 - 1kHz 137.43 17 Budapest + 2kHz 136.83 -6 DCF39 - 2kHz 136.43 39 Budapest + 1kHz 135.43 ~76 Budapest carrier (night) The grabber snapshot is at http://members.aol.com/df6nm2/ICM_061125_2315z.gif (77kB). Though the ICM is normally much stronger at night, it is now often visible during daylight hours as well. 73 de Markus, DF6NM in JN59NK --part1_d30.baf654.329a3654_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Dear LF group,

during many nights my grabber screen resembles a bushfire, with all those re= d Luxemburg stripes above the Budapest signal, like flames around an orange=20= SXV...

One of the most prominent ionospheric heaters is Solt, Hungary with two mega= watts on 540 kHz. Almost every night around 23:13, it transmits a 1000 Hz au= dio test tone for a couple of minutes, very useful to quantify the cross mod= ulation sidebands imposed on several stations. Due to the quadratic nature o= f the heating, there is also a pair of second harmonics, 2 kHz from the affe= cted carriers.

Sat 06-11-25, 23:10:45z to 23:13:45z

f/kHz dBuV/m origin

138.83 ~71 DCF39 carrier (nighttime)

138.04   3 \ Turkish FSK
137.96   3 / 139kHz - 1kHz
137.83 15 DCF39 - 1kHz
137.43 17 Budapest + 2kHz
136.83 -6 DCF39 - 2kHz
136.43 39 Budapest + 1kHz

135.43 ~76 Budapest carrier (night)

The grabber snapshot is at http://members.aol.com/df6nm2/ICM_061125_2315z.gif (77kB).=

Though the ICM is normally much stronger at night, it is now often visible d= uring daylight hours as well.

73 de Markus,
DF6NM in JN59NK
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