Return-Path: Received: (qmail 25370 invoked from network); 10 Jul 2003 00:27:15 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 10 Jul 2003 00:27:15 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 9309 invoked from network); 10 Jul 2003 00:27:17 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 10 Jul 2003 00:27:17 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.14) id 19aPGU-0005Vv-In for rsgb_lf_group-outgoing@blacksheep.org; Thu, 10 Jul 2003 01:26:26 +0100 Received: from [152.163.225.104] (helo=imo-r08.mx.aol.com) by post.thorcom.com with esmtp (Exim 4.14) id 19aPGQ-0005Vl-KV for rsgb_lf_group@blacksheep.org; Thu, 10 Jul 2003 01:26:22 +0100 Received: from DL4YHF@aol.com by imo-r08.mx.aol.com (mail_out_v36_r1.1.) id l.67.14acd1a3 (3988) for ; Wed, 9 Jul 2003 20:25:49 -0400 (EDT) From: DL4YHF@aol.com Message-ID: <67.14acd1a3.2c3e0c8c@aol.com> Date: Wed, 9 Jul 2003 20:25:48 EDT To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 6.0 for Windows XP sub 50 Subject: Re: LF: GBR Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=2.3 required=5.0tests=HTML_00_10,HTML_MESSAGE,MIME_LONG_LINE_QP,NO_REAL_NAMEversion=2.55 X-Spam-Level: ** X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp) X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-transfer-encoding: 8bit Hi Geri, Steve and group,

Thanks for the nice info !

Just played "Tubular Bells" from CD through a (software) VLF receiver which was originally made to listen to SAQ. I was amazed by the quality, "VVV VVV VVV GBR GBR GBR = ALFA = ..", clearly audible when downconverted to 800Hz with a low audio bandwidth. The CW is partly garbled as some parts are dubbed over and over. Fine copy on GBR in  (FSK-) RTTY, 15 minutes after the begin of the track.
Any Mike Oldfield / CW fan with a selective level meter may be able to try this !

Interestingly, the audio pitch is different between  "Part One" and "Part Two" so maybe the master tape's motor speed control has suffered a bit .. or did GBR drift by 30 Hz between the  recording sessions...

Anyway, a funny experiment. Nice to know that CW on VLF will live forever, at least in my music archive. Hope they didn't punch military secrets in vinyl in the good old days !

Regards,
Wolf  DL4YHF.