Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-de01.r1000.mx.aol.com (Internet Inbound) with ESMTP id F3925380000BC; Sat, 12 May 2012 14:16:31 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1STGpU-0001ol-Ut for rs_out_1@blacksheep.org; Sat, 12 May 2012 19:14:08 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1STGpU-0001oc-62 for rsgb_lf_group@blacksheep.org; Sat, 12 May 2012 19:14:08 +0100 Received: from nm25-vm5.bullet.mail.ird.yahoo.com ([212.82.109.206]) by relay1.thorcom.net with smtp (Exim 4.77) (envelope-from ) id 1STGpS-0004Ij-Fy for rsgb_lf_group@blacksheep.org; Sat, 12 May 2012 19:14:07 +0100 Received: from [77.238.189.52] by nm25.bullet.mail.ird.yahoo.com with NNFMP; 12 May 2012 18:14:05 -0000 Received: from [212.82.108.226] by tm5.bullet.mail.ird.yahoo.com with NNFMP; 12 May 2012 18:14:05 -0000 Received: from [127.0.0.1] by omp1003.bt.mail.ird.yahoo.com with NNFMP; 12 May 2012 18:14:05 -0000 X-DKIM-Result: Domain=btopenworld.com Result=Signature OK X-Yahoo-Newman-Id: 378016.85638.bm@omp1003.bt.mail.ird.yahoo.com Received: (qmail 60142 invoked from network); 12 May 2012 18:14:05 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btopenworld.com; h=DKIM-Signature:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=afOrnNQPSiMfnTONSqHSv4uico7IL2A3NdOIJlxRgt/SfAxAxX43YaKfnetTtxyV1HRITKlgOPOp6bTrX6jDN/hzZ86OImi4yesUYGduQe/LzsezfAuRG6ipa7+HcK5yElqzHEo5kTT9RbyXllq6e76grbWf+KXg562voLe4ck0= ; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btopenworld.com; s=s1024; t=1336846445; bh=pEri6yZ5k9aSMg2TE1FmkdGbcKVE3BssPPJRd+g6AOE=; h=X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=Yxh6urDM0/GNIevFoSYoDma5ZEAPr8J3uIQNKtk0XfV5RYNxkRRFpI3xouVMFzv0rJXZyEIXdYBhgXWCqoeVAqzyfhnReqQhTPZNO2QGV8OlSmyZoDIGfd1Avai69dQSlpHdBQqY80lYWKfFr4hyiyb67gNDWNK+9Fwa7eq41sY= X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: 1dDRm2QVM1kB0pPXkKt.b3VWBegN2OfoyA8.55xgvGjuu9c IxRwKpBheXEUgh.JSPSpk184S47kQIHj5m5hNkQ6xvX9bm3oo6OGqniPN8Bk O_P569FWSSULN19Brmftd9tU9gxYNtLXK5euRlRCbFhj7gSZKPu52DbaeRvL H2UntWXPDd8Rd8_8DQEah_DThM7GlXBGoOf06HGBBELHTwb2CMcXQz9m8QFy q_.2XCTrbkHLU06zBxnyXaBPxHSqHFrN3QQNlb.rQU3FGw009dY1syHpRuXW MOdb.LSrhCj_ABWNY9wT2TGoyKoYZCHLJT3pB76RcO133Avk1I_fvBdT.mBl hr1smyEkXkoWfBcGMYjYq5LEv5d41BDnBP08apS6hhc6IUgPKoNuNHsdqHHx .fvez2rtbRe1B7UfGypPT3LeoTVkq5xvRXu2UDAB9Qr9Grvx.xAG5kte0U5l 2XK1BuQ-- X-Yahoo-SMTP: Cxhli3eswBD1ozmtAojhjrja86kWx0Qm9tycD5QR1DKWrOLgjJcXkw-- Received: from JimPC (james.moritz@86.173.191.143 with login) by smtp825.mail.ukl.yahoo.com with SMTP; 12 May 2012 11:14:04 -0700 PDT Message-ID: <3333EC45C262400BA932E210F3241223@JimPC> From: "James Moritz" To: References: <99F3BE8C10254B3AAC3A81BA16DA2584@computereebf79> In-Reply-To: <99F3BE8C10254B3AAC3A81BA16DA2584@computereebf79> Date: Sat, 12 May 2012 19:14:17 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18197 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Dear Martin, LF Group, Provided you were happy with simple on/off keying, i.e. QRSS rather than DFCW or the various mFSK modes, there is no need to interface the sig gen to the PC. You could just connect the sig gen output via a relay or other bit of gating circuitry, set the generator to the frequency you want and key the relay with the QRSS software... Actually, for most types of TX, a better idea is to leave the generator going constantly and key the PA stage. I used to use an old Racal generator in this way. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [212.82.109.206 listed in list.dnswl.org] 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: cc2e5baae40f8f7a09b47e6877ef0bfb Subject: Re: LF: IEEE488 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.1 required=5.0 tests=MISSING_OUTLOOK_NAME 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-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:439209312:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m211.2 ; domain : btopenworld.com DKIM : pass x-aol-sid: 3039ac1d40c94faea8ff6994 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Dear Martin, LF Group, Provided you were happy with simple on/off keying, i.e. QRSS rather than DFCW or the various mFSK modes, there is no need to interface the sig gen to the PC. You could just connect the sig gen output via a relay or other bit of gating circuitry, set the generator to the frequency you want and key the relay with the QRSS software... Actually, for most types of TX, a better idea is to leave the generator going constantly and key the PA stage. I used to use an old Racal generator in this way. Cheers, Jim Moritz 73 de M0BMU