Envelope-to: dave@picks.force9.co.uk Delivery-date: Thu, 02 Feb 2006 10:03:24 +0000 Received: by ptb-mxcore01.plus.net with spam-scanned (PlusNet MXCore v2.00) id 1F4bJD-0002eX-Bm for dave@picks.force9.co.uk; Thu, 02 Feb 2006 10:03:23 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (PlusNet MXCore v2.00) id 1F4bJC-0002de-K1 for dave@picks.force9.co.uk; Thu, 02 Feb 2006 10:03:22 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1F4bIg-0001qm-MX for rs_out_1@blacksheep.org; Thu, 02 Feb 2006 10:02:50 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1F4bIg-0001qd-BP for rsgb_lf_group@blacksheep.org; Thu, 02 Feb 2006 10:02:50 +0000 Received: from dx.ru ([80.68.4.13] helo=relay.dx.ru) by relay1.thorcom.net with smtp (Exim 4.51) id 1F4ccY-0005eA-VF for rsgb_lf_group@blacksheep.org; Thu, 02 Feb 2006 11:27:45 +0000 Received: (qmail 34085 invoked from network); 2 Feb 2006 13:01:19 +0300 Received: from ed.dx (ed@10.0.1.11) by unix.dx with SMTP; 2 Feb 2006 13:01:19 +0300 Date: Thu, 2 Feb 2006 13:01:06 +0300 From: Ed Lesnichy X-Mailer: The Bat! (v3.0) Professional Organization: Ed Lesnichy X-Priority: 3 (Normal) Message-ID: <486075040.20060202130106@dx.ru> To: rsgb_lf_group@blacksheep.org In-Reply-To: <1941044238.20060201210259@dx.ru> References: <000701c62720$be51b3a0$6401a8c0@JAYTERMINAL> <1246025403.20060201202249@dx.ru> <1941044238.20060201210259@dx.ru> MIME-Version: 1.0 Subject: LF: HF2LF Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit 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-PN-SpamFiltered: by PlusNet MXCore (v2.00) Dear LF enthusiasts, TNX by all for the comments and advice! 1. Alex RA9MB wrote abt 2-nd and 3-rd order nonlinear transformations in the ionosphere: 14350 - 14213=137 kHz - 2-nd order 28137 - 2*14000=137 kHz - 3-rd (TX1 28137, TX2 14000) 2*3568 - 7000=137 kHz - 3-rd (TX1 3568, TX2 7000) 2*1900 - 3663=137 kHz - 3-rd (TX1 1900, TX2 3663) - the best variant in Alex's opinion for HF2LF experiment Luxembourg effect (nonlinear transformations in the ionosphere) is 3-rd order nonlinear transformations (?) 2. Alex RA9MB wrote abt better variant HF2LF: 2*881.5 - 1900=137 kHz (for example TX1 1900, TX2 - broadcasting on 881.5 near my QTH or near RX QTH???) If I'll TX in a range 1810....2000 (160m amateur band), the broadcasting station should be TX in a range 836.5....931.5 kHz ...but probably my TX 100W Output can be a little (???) 3. Some LF enthusiasts have become interested to watch for mine HF2LF QRSS beacon on the opposite pond of the Atlantic ocean. i.e. in range 136.317...320 How is this freqs clear in Europe? 73! Ed RU6LA ed@dx.ru http://136.73.ru