Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dk06.r1000.mx.aol.com (Internet Inbound) with ESMTP id 34F6738000085; Sat, 12 May 2012 15:30:08 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1STHzG-0002ZH-68 for rs_out_1@blacksheep.org; Sat, 12 May 2012 20:28:18 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1STHzF-0002Z5-PD for rsgb_lf_group@blacksheep.org; Sat, 12 May 2012 20:28:17 +0100 Received: from mk-filter-3-a-1.mail.tiscali.co.uk ([212.74.100.54] helo=mk-filter-3-a-1.mail.uk.tiscali.com) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1STHzE-0004dV-5x for rsgb_lf_group@blacksheep.org; Sat, 12 May 2012 20:28:16 +0100 X-Trace: 761072359/mk-filter-3.mail.uk.tiscali.com/B2C/$b2c-THROTTLED-DYNAMIC/b2c-CUSTOMER-DYNAMIC-IP/88.109.102.87/None/g4wgt@tiscali.co.uk X-SBRS: None X-RemoteIP: 88.109.102.87 X-IP-MAIL-FROM: g4wgt@tiscali.co.uk X-SMTP-AUTH: X-Originating-Country: GB/UNITED KINGDOM X-MUA: Microsoft Windows Mail 6.0.6002.18197Produced By Microsoft MimeOLE V6.1.7601.17609 X-IP-BHB: Once X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtsKADK5rk9YbWZX/2dsb2JhbABEslUCgRmBCIIVAQEEAQgwHh4KBgEEBQMDEQQBAQolMwYWCAYTCAmHeAm6GosagVOBD4JDYwSIMJMvil6Cag X-IronPort-AV: E=Sophos;i="4.75,577,1330905600"; d="scan'208";a="761072359" Received: from 88-109-102-87.dynamic.dsl.as9105.com (HELO GaryPC) ([88.109.102.87]) by smtp.tiscali.co.uk with SMTP; 12 May 2012 20:28:14 +0100 Message-ID: <7C951166FE1F4075974968A9E1393368@GaryPC> From: "Gary G4WGT" To: References: <99F3BE8C10254B3AAC3A81BA16DA2584@computereebf79> <3333EC45C262400BA932E210F3241223@JimPC> In-Reply-To: <3333EC45C262400BA932E210F3241223@JimPC> Date: Sat, 12 May 2012 20:28:13 +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 V6.1.7601.17609 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: Hi Martin, LF, I have used relay keying using qrs.exe to key the output from my DDS VFO & it was a very simple, stable & reliable method. The DDS VFO remained on all the time. seems to me the way to go. [...] 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 [212.74.100.54 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (g4wgt[at]tiscali.co.uk) -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -0.0 SPF_PASS SPF: sender matches SPF record X-Scan-Signature: f62c7cf8eeb8e5a327b71719e9bffff1 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: 0:2:434292480:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1db40a4faeba402cd3 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hi Martin, LF, I have used relay keying using qrs.exe to key the output from my DDS VFO & it was a very simple, stable & reliable method. The DDS VFO remained on all the time. seems to me the way to go. 73, Gary - G4WGT. ----- Original Message ----- From: "James Moritz" To: Sent: Saturday, May 12, 2012 7:14 PM Subject: Re: LF: IEEE488 > 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 >