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[195.171.43.25]) by mx.google.com with ESMTP id e20si20638558wiv.46.2014.05.29.05.58.28 for ; Thu, 29 May 2014 05:58:29 -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 1WpzMg-0008AA-K1 for rs_out_1@blacksheep.org; Thu, 29 May 2014 13:23:22 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WpzLV-00089r-Cj for rsgb_lf_group@blacksheep.org; Thu, 29 May 2014 13:22:09 +0100 Received: from cpsmtpb-ews03.kpnxchange.com ([213.75.39.6]) by relay1.thorcom.net with esmtp (Exim 4.82) (envelope-from ) id 1WpzLQ-0008N9-33 for rsgb_lf_group@blacksheep.org; Thu, 29 May 2014 13:22:04 +0100 Received: from cpsps-ews19.kpnxchange.com ([10.94.84.185]) by cpsmtpb-ews03.kpnxchange.com with Microsoft SMTPSVC(7.5.7601.17514); Thu, 29 May 2014 14:22:03 +0200 Received: from CPSMTPM-cmt107.kpnxchange.com ([195.121.3.23]) by cpsps-ews19.kpnxchange.com with Microsoft SMTPSVC(7.5.7601.17514); Thu, 29 May 2014 14:22:03 +0200 Received: from [127.0.0.1] ([62.131.23.134]) by CPSMTPM-cmt107.kpnxchange.com with Microsoft SMTPSVC(7.0.6002.18264); Thu, 29 May 2014 14:22:03 +0200 Message-ID: <5387266B.3050809@kpnmail.nl> Date: Thu, 29 May 2014 14:22:03 +0200 From: pa3abk User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <3aus82kygodvhbmtvch78dsa.1401357615521@email.android.com> <53871547.5080506@gmail.com> In-Reply-To: <53871547.5080506@gmail.com> X-OriginalArrivalTime: 29 May 2014 12:22:03.0078 (UTC) FILETIME=[98E84E60:01CF7B38] X-RcptDomain: blacksheep.org 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: Seems you are very young at age :-) Earlier users were forced to use MCW on the calling freq in order to be heard by those stations who were not yet equipped with the "new" technology to receive A1 transmissions. Some shiptransmitters used their generator frequency raw rectified, which produced a 1kHz full modulated transmission. An early version of a switch mode modulator as we know now. In those days most vessels had only DC available a generator was necessary to power the radiostation "at high voltage". Emergency calls had to be made in this mode. The Autoalarm only reacted on this mode. Particular in high static regions this was an advantage. [...] 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 [213.75.39.6 listed in list.dnswl.org] X-Scan-Signature: c1f72e5acb1277e013f90c915ad7ad68 Subject: Re: LF: 472 tonight Content-Type: text/plain; charset=ISO-8859-1; format=flowed 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 Seems you are very young at age :-) Earlier users were forced to use MCW on the calling freq in order to be heard by those stations who were not yet equipped with the "new" technology to receive A1 transmissions. Some shiptransmitters used their generator frequency raw rectified, which produced a 1kHz full modulated transmission. An early version of a switch mode modulator as we know now. In those days most vessels had only DC available a generator was necessary to power the radiostation "at high voltage". Emergency calls had to be made in this mode. The Autoalarm only reacted on this mode. Particular in high static regions this was an advantage. Just like your chirpy mode, it is was quite distinctive for the human ear within statics. http://en.wikipedia.org/wiki/Modulated_continuous_wave DK7FC wrote On 29-5-2014 13:08: > MCW ??? > What is that? > 73 -- pa3abk <-> dordrecht jo21it Sent by STB-75 with T100