Return-Path: Received: from rly-md06.mx.aol.com (rly-md06.mail.aol.com [172.20.29.144]) by air-md02.mail.aol.com (v126.13) with ESMTP id MAILINMD023-90b4b22645d3f; Fri, 11 Dec 2009 10:25:27 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-md06.mx.aol.com (v125.7) with ESMTP id MAILRELAYINMD063-90b4b22645d3f; Fri, 11 Dec 2009 10:25:19 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NJ7Ln-0008E5-ME for rs_out_1@blacksheep.org; Fri, 11 Dec 2009 15:24:11 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NJ7Ln-0008Dw-58 for rsgb_lf_group@blacksheep.org; Fri, 11 Dec 2009 15:24:11 +0000 Received: from mail-yw0-f185.google.com ([209.85.211.185]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NJ7Li-00012m-Sl for rsgb_lf_group@blacksheep.org; Fri, 11 Dec 2009 15:24:11 +0000 Received: by ywh15 with SMTP id 15so949259ywh.5 for ; Fri, 11 Dec 2009 07:24:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=YtEfGvb3o5+8fnrt/Iq8mlXrTs44HIj9cYc1UsTDTnQ=; b=IW7m89qaRCWEeJbKKSt3/VnI8yK5duS4wgUYXKA8F+2QximYtu8XYHJH3atAtcEv3/ 1PgRKj7+P8pRz+s3kO1AqB4jE+4FJ9NZqKD2Ba/jyqOnjpE/NuHfqpTlTSfcl5rRHB2+ NWIrYFJRk5/NVkDQs9cOoILc0Xy+MzvoPxT0M= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=UaPxMUKVssmoPBnvJWniCuWFbz4Qs14BnBeFnWSJAjehwqcZhmE/d501G8iBy5XER9 6A5vmxx97oIWCE2CMN5jRgjocwGhMV9QnA/FXRNmOdnwaOXXAiBUDlQd3lbv5b2XhnI/ hIEUsb6LcW3EjzYRGaRP0hMuHAG/y+sHUjoyU= MIME-Version: 1.0 Received: by 10.150.56.1 with SMTP id e1mr2599222yba.225.1260545040479; Fri, 11 Dec 2009 07:24:00 -0800 (PST) In-Reply-To: <88EEC52E6C874CCEB966804D073A3376@White> References: <88EEC52E6C874CCEB966804D073A3376@White> Date: Fri, 11 Dec 2009 10:24:00 -0500 Message-ID: <57a24ca70912110724l43b18b68t5d2f18849fb14147@mail.gmail.com> From: Warren Ziegler To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Intercontinental LF waterholes Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable 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 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m273.1 ; domain : gmail.com DKIM : pass X-Mailer: Unknown (No Version) Markus, My antenna tuning unit is outside 100 meters away from the ham shack. I am unwilling to go out in the winter night to retune the antenna to QSY to the lower frequency segment. --=20 73 Warren K2ORS WD2XGJ WD2XSH/23 WE2XEB/2 WE2XGR/1 On Fri, Dec 11, 2009 at 3:38 AM, Markus Vester wrot= e: > Dear LF, > > the passage should have said: > > Taking into account the path of mutual darkness, this would mean that al= l > stations should transmit in the=A0UPPER band during their evenings until= local > midnight, and then QSY to the lower band for the rest of the night. > > Sorry for the confusion. > > 73, Markus > From: Markus Vester > Sent: Friday, December 11, 2009 12:14 AM > To: rsgb_lf_group@blacksheep.org > Subject: LF: Intercontinental LF waterholes > Dear LF group, > > recently we find the "transatlantic waterhole" around 137.777 kHz quite > busy. Several Europeans have started beaconing within this segment. And > there has been some fast (QRSS3 or 10) activity, with wide traces coveri= ng > up possible transatlantic DX signalling frequencies. > > During the last years, we have=A0attempted to=A0split the frequency band= s > for=A0both directions of transatlantic work.=A0Traditional segments were= =A0around > 137.777 kHz west-to-east (for Americans transmitting towards Eu), and ar= ound > 136.320 kHz east-west (for Eu to stateside).=A0Slow modes (QRSS or DFCW,= 60 > second and longer)=A0were used almost exclusively there, and several sta= tions > were able to successfully cross the pond in either direction. > > The situation has become a little more intricate as=A0more stations from= other > parts of the world (eg. Asia, China, Japan) are joining the game with > sensitive receivers and good signals. But I still think it would be help= ful > to separate RX and TX bands within each area as much as possible. > > My suggestion would be to=A0stick with the east-west=A0versus west-east > allocation of the two slots. Taking into account the path of mutual > darkness, this would mean that all stations should transmit in the lower > band during their evenings until local midnight, and then QSY to the low= er > band for the rest of the night. Receiver settings=A0would=A0of course be= vice > versa. > > I'm aware that this=A0scheme cannot be perfect and universal. It won't= cover > North-South hauls, and would not protect=A0signals during early or late > openings. But it's simple enough, and I believe it would still be very > useful. Please don't get me wrong - I do not want to discourage anyone= from > putting out a=A0signal, and certainly=A0reject the notion of=A0anything > reminiscent of=A0a=A0"band police". I just think a little coordination= may help > all of us to=A0be successful on this=A0challenging and fascinating band. > > Let me have your thoughts... > > 73 de Markus, DF6NM > > http://freenet-homepage.de/df6nm/Grabber.htm > >