Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mb04.r1000.mx.aol.com (Internet Inbound) with ESMTP id D2181380000A8; Wed, 11 Jan 2012 10:47:53 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Rl09V-0002Wy-BP for rs_out_1@blacksheep.org; Wed, 11 Jan 2012 15:31:49 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Rl09U-0002Wp-LP for rsgb_lf_group@blacksheep.org; Wed, 11 Jan 2012 15:31:48 +0000 Received: from queueout02-winn.ispmail.ntl.com ([81.103.221.56]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Rl09T-0001DK-94 for rsgb_lf_group@blacksheep.org; Wed, 11 Jan 2012 15:31:48 +0000 Received: from aamtaout02-winn.ispmail.ntl.com ([81.103.221.35]) by mtaout02-winn.ispmail.ntl.com (InterMail vM.7.08.04.00 201-2186-134-20080326) with ESMTP id <20120111152338.MHHX27245.mtaout02-winn.ispmail.ntl.com@aamtaout02-winn.ispmail.ntl.com> for ; Wed, 11 Jan 2012 15:23:38 +0000 Received: from [192.168.2.2] (really [82.5.252.56]) by aamtaout02-winn.ispmail.ntl.com (InterMail vG.3.00.04.00 201-2196-133-20080908) with ESMTP id <20120111152338.HIIS5924.aamtaout02-winn.ispmail.ntl.com@[192.168.2.2]> for ; Wed, 11 Jan 2012 15:23:38 +0000 From: "Mike Dennison" To: rsgb_lf_group@blacksheep.org Date: Wed, 11 Jan 2012 15:23:32 -0000 MIME-Version: 1.0 Message-ID: <4F0DA974.28074.2E2A6B@mike.dennison.ntlworld.com> X-mailer: Pegasus Mail for Windows (4.41) Content-description: Mail message body X-Cloudmark-Analysis: v=1.1 cv=R50lirqlHffDPPkwUlkuVa99MrvKdVWo//yz83qex8g= c=1 sm=0 a=uObrxnre4hsA:10 a=9YlaCzn6_68A:10 a=kj9zAlcOel0A:10 a=swPkNVIuIPGTYoAoH7QA:9 a=CjuIK1q_8ugA:10 a=HpAAvcLHHh0Zw7uRqdWCyQ==:117 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Opera - more questions Content-type: text/plain; charset=US-ASCII 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=0.0 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-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:383630176:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d60184f0daf284608 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none I have been trying to follow all of the excitement about Opera. However, unless I have missed something, there seems to be very little real information about it. My apologies if this has already been explained. It is promoted as an alternative to CW/QRSS, but will it run with an on/off keyed oscillator and a Class D transmitter, or is it yet another sound card + SSB Tx + linear amp mode? What is its bandwidth? Can it be used in close proximity to existing QRSS stations? Does it need very accurate Tx/Rx settings like WOLF does? What are the computer requirement? I run QRSS easily on an old machine with very little RAM and a slow CPU. Will I need a state-of- the-art PC for Opera. Does it use fewer resources for Rx only? The results of G4WGT/VO1NA are very impressive, not because of the power level (several stations have crossed the Atlantic with 400mW ERP), but because of the very short time taken to pass each callsign. Why is it so efficient? Is a QSO mode envisaged, or is it another beacon-only system? It would really help to see a web site with some bullet points about it, some screen shots and a single download source. I am reluctant to download any software without finding out in advance whether it would be useful to me, or even whether it would run on my shack PC. Can anyone help? 73 de Mike, G3XDV ===============