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[195.171.43.25]) by mx.google.com with ESMTP id bw16si176890wib.115.2014.05.07.15.27.50 for ; Wed, 07 May 2014 15:27:51 -0700 (PDT) Received-SPF: none (google.com: owner-rsgb_lf_group@blacksheep.org does not designate permitted sender hosts) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: owner-rsgb_lf_group@blacksheep.org does not designate permitted sender hosts) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Wi9sf-0004zY-ED for rs_out_1@blacksheep.org; Wed, 07 May 2014 23:00:01 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Wi9se-0004zK-JE for rsgb_lf_group@blacksheep.org; Wed, 07 May 2014 23:00:00 +0100 Received: from smtpout3.wanadoo.co.uk ([80.12.242.59] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.82) (envelope-from ) id 1Wi9sc-0005yW-FI for rsgb_lf_group@blacksheep.org; Wed, 07 May 2014 22:59:59 +0100 Received: from AGB ([2.31.67.88]) by mwinf5d39 with ME id z9zu1n00Z1uFXde039zuGC; Wed, 07 May 2014 23:59:57 +0200 X-ME-Helo: AGB X-ME-Date: Wed, 07 May 2014 23:59:57 +0200 X-ME-IP: 2.31.67.88 Message-ID: <1AD990D7DE9E4188ADA96A7BA454FBBF@AGB> From: "Graham" To: References: <56120696A8C7412ABCCD8F5AF4C77064@PCFIXE> <1399188247.96608.YahooMailNeo@web133001.mail.ir2.yahoo.com> <214CB6901F944AAB808748C0F08BF7DB@AGB> In-Reply-To: Date: Wed, 7 May 2014 22:59:54 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 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: Its one of those loaded questions Joe , You have narrow modes with high energy / Hz b/w or wide modes with low energy / Hz b/w , Which actually produces the most qrm to other users ? [...] 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 [80.12.242.59 listed in list.dnswl.org] X-Scan-Signature: fb3e28a759dea7e01d34d3fe7de7ae98 Subject: Re: LF: Canada's newest amateur band - 630m. (B/W) 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 Its one of those loaded questions Joe , You have narrow modes with high energy / Hz b/w or wide modes with low energy / Hz b/w , Which actually produces the most qrm to other users ? true , there is not too much to be gained in terms of 'spreading gain' at mf as the band parameters are 'uniform' but on the other side , widening allows multiple access to the same b/w , but that needs the level of coding to achieve this to be state of the art Take say Olivia 2 K , that provides a below the noise level data link , but in the traditional 1X3 format , 1 qso 1 mode 1 channel .... where as ROS-HF 2KHz with a cdma layer in the code , allows multiple qso's on the same channel, with a lower power , for the same data rate , the Ros modem utilises a phase continuous wave , where as Olivia has a phase angle content and needs a linear Tx system There is nothing wrong with either system , but one offers a higher level of access / users than the other b/w and software architecture should be a design choice and not obstacles ! 73-G, -------------------------------------------------- From: Sent: Tuesday, May 06, 2014 12:55 PM To: Subject: Re: LF: Canada's newest amateur band - 630m. (B/W) > Hi G.. > > Yesterday, VE3QN at RAC had suggeted 1 kHz as a "fair guess" for B/W. Is > the Group comfortable with this? > > Cheers > Joe VO1NA > > > On Sun, 4 May 2014, Graham wrote: > >> Better late than never Joe, just in time for the next dip in >> solar activity as well ! >> >> No mention of modes and B/W in the sub clauses , other than the >> usual 'no jam' ? >> >> 73, G, >> >> -------------------------------------------------- >> From: >> Sent: Sunday, May 04, 2014 10:11 AM >> To: >> Subject: LF: Canada's newest amateur band - 630m. >> >>> Hello Group, >>> >>> For those who didn't get the CW message on 477.7 kHz last night, I'm >>> happy to report that 472-479 kHz is now available to all Canadian >>> amateurs. Per the ITU WRC12 approval of 14 February 2012, we may >>> use 5 watts EIRP on the band but may not cause interference to >>> the primary users. For further info, please see the Industry Canada >>> web page, http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf10759.html >>> which was published online last Thursday 1 May. >>> >>> 73 >>> Joe VO1NA >>> >>> >> >> >