Return-Path: Received: (qmail 32355 invoked from network); 21 Nov 2004 00:44:26 -0000 Received: from unknown (HELO ptb-spamcore02.plus.net) (192.168.71.3) by ptb-mailstore02.plus.net with SMTP; 21 Nov 2004 00:44:26 -0000 Received: from mailnull by ptb-spamcore02.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1CVfpq-0008Wt-RK for dave@picks.force9.co.uk; Sun, 21 Nov 2004 00:44:11 +0000 Received: from [192.168.67.2] (helo=ptb-mxcore02.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.32; FreeBSD) id 1CVfpq-0008Wq-Ok for dave@picks.force9.co.uk; Sun, 21 Nov 2004 00:44:10 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1CVfq5-000NGc-9w for dave@picks.force9.co.uk; Sun, 21 Nov 2004 00:44:25 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1CVfpm-00016a-Tw for rs_out_1@blacksheep.org; Sun, 21 Nov 2004 00:44:06 +0000 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1CVfpm-00016R-Ft for rsgb_lf_group@blacksheep.org; Sun, 21 Nov 2004 00:44:06 +0000 Received: from smtpout01-04.mesa1.secureserver.net ([64.202.165.79]) by relay.thorcom.net with smtp (Exim 4.41) id 1CVfpi-0005EA-9L for rsgb_lf_group@blacksheep.org; Sun, 21 Nov 2004 00:44:06 +0000 Received: (qmail 15095 invoked from network); 21 Nov 2004 00:43:53 -0000 Received: from unknown (68.116.172.18) by smtpout01-04.mesa1.secureserver.net (64.202.165.79) with ESMTP; 21 Nov 2004 00:43:53 -0000 Message-ID: <003a01c4cf63$5d36c940$0500a8c0@charter.net> From: "John Andrews" To: rsgb_lf_group@blacksheep.org References: Date: Sun, 21 Nov 2004 00:45:13 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-SPF-Result: relay.thorcom.net: 64.202.165.79 is neither permitted nor denied by domain of w1tag.com X-Spam-Score: 0.9 (/) X-Spam-Report: autolearn=no,HTML_30_40=0.809,HTML_MESSAGE=0.001,RCVD_IN_SORBS=0.1 Subject: LF: Re: CFH on 136.9559 kHz ? Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,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-Spam-Filtered: by PlusNet SpamCORE (v3.00) Content-transfer-encoding: 8bit
Markus
 
It is definitely CFH, and is quite loud here at 700 km. I have been watching the line on your screen as well! Unfortunately, I'm not set up presently to make an accurate field strength reading.
 
John Andrews, W1TAG
----- Original Message -----
From: MarkusVester@aol.com
To: rsgb_lf_group@blacksheep.org
Sent: Sunday, November 21, 2004 00:33
Subject: LF: CFH on 136.9559 kHz ?

Dear LF group,

for some time there has been a  blue line on 136955.90 Hz, in the middle of my SpecLab screen (http://members.aol.com/df6nm/Grabber.htm, now updating every 10 min). It is probably the CFH carrier mentioned by G3NYK and monitored by CT1DRP.

This is what I had always wished to have for W-E propagation monitoring - a narrow line that can be received with millihertz resolution, and (hopefully) clean and weak enough not to clutter up the band in America. The line was visible in Nuernberg during most of the daylight hours, and peaked to ~3 µV/m around 21:15 this evening - looks like conditions may to be improving. If somebody could make a measurement of CFH within ground wave range, we could estimate their radiated power and make guesses on ionospheric path attenuation.

Best wishes
Markus, DF6NM