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[79.148.108.254]) by mx.google.com with ESMTPSA id bn7sm3524349wjc.7.2014.05.29.11.11.20 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Thu, 29 May 2014 11:11:21 -0700 (PDT) Message-ID: <0E36C0BEC3594DC38379C793931CB286@p1800> From: "Federico" To: References: <3aus82kygodvhbmtvch78dsa.1401357615521@email.android.com> <53871547.5080506@gmail.com> <5387266B.3050809@kpnmail.nl> <538735E9.8080309@gmail.com> Date: Thu, 29 May 2014 20:11:19 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5512 X-Spam-Score: -0.4 (/) 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: When I got my license in 1960 (last millennium), there were three modes: A1. - Keyed carrier A2 -. Keyed "AM-modulated tone" carrier A3 -. AM modulated transmission Multitude of modulation modes with their characteristics and their abbreviations are now known. I found it funny that Stefan has felt almost offended that you have called young. Almost by bending the old me I would be a compliment to call me young. Honor the "old timers" who remember the A2 and feel young. 73 ES DX Federico EA2HB [...] Content analysis details: (-0.4 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.212.173 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (herennio4[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.2 FREEMAIL_ENVFROM_END_DIGIT Envelope-from freemail username ends in digit (herennio4[at]gmail.com) 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: d7fcd9b75df8d1b09ddef9df028bd9ae Subject: Re: LF: 472 tonight 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=1.6 required=5.0 tests=FORGED_MUA_OUTLOOK 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 When I got my license in 1960 (last millennium), there were three modes: A1. - Keyed carrier A2 -. Keyed "AM-modulated tone" carrier A3 -. AM modulated transmission Multitude of modulation modes with their characteristics and their abbreviations are now known. I found it funny that Stefan has felt almost offended that you have called young. Almost by bending the old me I would be a compliment to call me young. Honor the "old timers" who remember the A2 and feel young. 73 ES DX Federico EA2HB ----- Original Message ----- From: "DK7FC" <73dk7fc@googlemail.com> To: Sent: Thursday, May 29, 2014 3:28 PM Subject: Re: LF: 472 tonight > Hi Jan, > > Am 29.05.2014 14:22, schrieb pa3abk: >> Seems you are very young at age :-) > > No, i became 38 some days ago... >> >> 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. > Aah, that's a good idea! ;-) > >> 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 > Thanks for the informations. > > 73, Stefan > >> >> DK7FC wrote On 29-5-2014 13:08: >>> MCW ??? >>> What is that? >>> 73 >> >> >