Return-Path: Received: (qmail 29701 invoked from network); 3 Dec 2001 12:17:40 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 3 Dec 2001 12:17:40 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 10817 invoked from network); 3 Dec 2001 12:17:53 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 3 Dec 2001 12:17:53 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16Arw3-0005OM-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 03 Dec 2001 12:10:59 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from bob.dera.gov.uk ([192.5.29.90]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16Arw1-0005OH-00 for rsgb_lf_group@blacksheep.org; Mon, 03 Dec 2001 12:10:58 +0000 Received: by bob.dera.gov.uk; (8.8.8/1.3/10May95) id MAA06314; Mon, 3 Dec 2001 12:18:56 GMT Received: (qmail 13921 invoked from network); 3 Dec 2001 13:00:53 -0000 Received: from gauntlet.mail.dstl.gov.uk (192.168.9.10) by baton.dstl.gov.uk with SMTP; 3 Dec 2001 13:00:53 -0000 Received: by gauntlet.mail.dstl.gov.uk; id MAA21164; Mon, 3 Dec 2001 12:34:00 GMT Received: from unknown(172.17.128.171) by gauntlet.mail.dstl.gov.uk via smap (3.2) id xma021154; Mon, 3 Dec 01 12:33:41 GMT Received: from FRN-MAIL-R3.dstl.gov.uk (unverified) by mailguard.dstl.gov.uk (Content Technologies SMTPRS 4.1.5) with ESMTP id for ; Mon, 3 Dec 2001 12:14:37 +0000 Received: by frn-mail-r3.dstl.gov.uk with Internet Mail Service (5.5.2650.21) id ; Mon, 3 Dec 2001 12:09:47 -0000 Message-ID: <7D653C9C42F5D411A27C00508BF8803D55C655@pdw-mail-r1.dstl.gov.uk> From: "Talbot Andrew" To: rsgb_lf_group@blacksheep.org Subject: LF: RE:but fb copy of 80m QRSS QRPpp beacon Date: Mon, 3 Dec 2001 12:09:34 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset=iso-8859-1; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Actually I WAS transmitting a SMT Hell signal, approx 10Hz above this transmission on Friday night. Signal bandwidth was 2Hz with 2s pixel intervals, but the power was only -3dBm as that is all I could quickly get out of a bare DDS module. (The one used for LF in the past has a 5MHz clock so can only generate up to around 2MHz) Also frequency stability was not up to usual standards as a 100MHz TTL packaged oscillator was the only source I could quickly find to drive the DDS board, so at least a couple of Hz drift. Will try again, possibly next weekend when I have managed to put together a much better clock source and found a few dB of power gain. I have a choice of 4 fonts in my prog for driving the AD9850 DDS module. Three fonts are taken from the DOS BIOS (remember DOS ?) ranging from 10x8 to 16x8 raster and one simple 7x5 font. Andy G4JNT > How about a QRPP HELL revival on 80 meters.. with the PIC driving the DDS to > generate a kind of sequential hell image ? >An interesting idea! I got a good copy of G4JNT's Hell beacon on 136kHz some >time ago. It think it should work well on HF too. The doppler jitter could even improve >readability by smoothing the "pixelization" caused by sequential tones... >I will try to find ZL1BPU's (?) web page about "fuzzy modes" again to get some >inspiration. What is the best (most readable - not most beautiful) font for this mode? >CU in Hell! -- The Information contained in this E-Mail and any subsequent correspondence is private and is intended solely for the intended recipient(s). For those other than the recipient any disclosure, copying, distribution, or any action taken or omitted to be taken in reliance on such information is prohibited and may be unlawful.