Return-Path: Received: (qmail 83370 invoked from network); 14 Apr 2005 16:24:57 -0000 Received: from unknown (HELO ptb-spamcore02.plus.net) (192.168.71.3) by ptb-mailstore02.plus.net with SMTP; 14 Apr 2005 16:24:57 -0000 Received: from mailnull by ptb-spamcore02.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1DM7AQ-000ENz-Vy for dave@picks.force9.co.uk; Thu, 14 Apr 2005 17:26:11 +0100 Received: from [192.168.101.72] (helo=pih-mxcore06.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.32; FreeBSD) id 1DM7AI-000ENX-7v for dave@picks.force9.co.uk; Thu, 14 Apr 2005 17:26:02 +0100 Received: from post.thorcom.com ([193.82.116.20]) by pih-mxcore06.plus.net with esmtp (PlusNet MXCore v1.0) id 1DM77l-0000vG-69 for dave@picks.force9.co.uk; Thu, 14 Apr 2005 17:23:25 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1DM77W-0001Rs-Uw for rs_out_1@blacksheep.org; Thu, 14 Apr 2005 17:23:10 +0100 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1DM77W-0001Rj-FK for rsgb_lf_group@blacksheep.org; Thu, 14 Apr 2005 17:23:10 +0100 Received: from newbox.tcp.net.uk ([195.80.0.243]) by relay.thorcom.net with esmtp (Exim 4.43) id 1DM77V-0007iK-0c for rsgb_lf_group@blacksheep.org; Thu, 14 Apr 2005 17:23:10 +0100 Received: from d4f8d8 ([212.248.140.1]) by newbox.tcp.net.uk (8.12.7/8.12.7) with ESMTP id j3EGPqqL013331 for ; Thu, 14 Apr 2005 17:25:54 +0100 (BST) Received: from 127.0.0.1 (AVG SMTP 7.0.308 [266.9.5]); Thu, 14 Apr 2005 17:22:39 +0100 Message-ID: <002301c5410e$2d332000$045bfea9@d4f8d8> From: "Andy Talbot" To: rsgb_lf_group@blacksheep.org References: <12b.5b065c0c.2f8fc69d@aol.com> <425E9572.7000405@tele2.se> Date: Thu, 14 Apr 2005 17:22:05 +0100 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Mime-Version: 1.0 X-TCP-MailScanner-Information: Please visit www.tcp.co.uk for more information X-TCP-MailScanner: Found to be clean X-MailScanner-From: actalbot@southsurf.com X-SPF-Result: relay.thorcom.net: 195.80.0.243 is neither permitted nor denied by domain of southsurf.com X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=failed,none Subject: Re: LF: LF and JT65 + EMail problem sorted Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=iso-8859-1; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com 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-Spam-Filtered: by PlusNet SpamCORE (v3.00) Hopefully, if this gets posted my email problems are now resolved (Server name had to be changed, and hadn't kept the bulk email giving instructions sent 6 months ago) SNAP - we've done much the same then, only I used the AD9852 DDS for a VHF beacon with an identical structure For JT65 all you need to do is pre-encode the symbols for your message using Joe's utility, then save the 64 symbols in EEPROM. Change the timing to the new symbol rate, any symbol counters and the sync vector. Looks simple enough, although I haven't done it yet. Andy G4JNT ----- Original Message ----- From: "Johan Bodin" To: Sent: Thursday, April 14, 2005 5:08 PM Subject: Re: LF: LF and JT65 > Andy wrote: > > > I have been looking into JT65, and its earlier incarnation JT44, in some > > depth recently for use on beacons. It is very amenable to being generated > > in a simple driver based around a DDS chip. > > I don't know JT65 but I experimented with a micropower JT44 beacon on HF > about two years ago. GPS time & 1PPS -> PIC -> AD9850 DDS. Maybe it can > be converted to JT65? I will send the PIC code to anyone interested. > > 73 > Johan SM6LKM > > > > -- > Internal Virus Database is out-of-date. > Checked by AVG Anti-Virus. > Version: 7.0.308 / Virus Database: 266.9.5 - Release Date: 2005-04-07 > > > > > -- > Internal Virus Database is out-of-date. > Checked by AVG Anti-Virus. > Version: 7.0.308 / Virus Database: 266.9.5 - Release Date: 2005-04-07 > > -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.9.5 - Release Date: 2005-04-07