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    <div class="moz-cite-prefix">Tenho aqui dois Nokia que com dois
      pares de cobre davam 180kbit/s, algo que de vez em quando uso no
      laborat&oacute;rio para mostrar aos alunos, coisas que ainda se apanham
      por a&iacute; em produ&ccedil;&atilde;o em alguns locais.<br>
      E ficam a conhecer a "monstra" ficha do standard de facto nesses
      equipamentos que &eacute; a do V.35 (s&iacute;ncrono).<br>
      <br>
      73!<br>
      <br>
      On 19-02-2014 17:54, Filipe Pereira wrote:<br>
    </div>
    <blockquote
cite="mid:CAFWA3i1mQNhE1bg=h-eQYZRDW6zG3tC5BD1yKkpzuDXyfvNRLg@mail.gmail.com"
      type="cite">
      <p dir="ltr">Que saudades dos modems de banda base da ericsson
        usados nas chamadas linhas mortas, que n&atilde;o eram mais do que uma
        liga&ccedil;&atilde;o ponto a ponto entre o par de cobre. <br>
        73<br>
        Filipe Pereira<br>
        CS7AFP</p>
      <div class="gmail_quote">Em 19/02/2014 11:40, "Renato Encarna&ccedil;&atilde;o"
        &lt;<a moz-do-not-send="true" href="mailto:ct7abr@gmail.com">ct7abr@gmail.com</a>&gt;
        escreveu:<br type="attribution">
        <blockquote class="gmail_quote" style="margin:0 0 0
          .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div dir="ltr">
            <div>Um termo mais apropriado agora no Sec. XXI ser&aacute; "banda
              de base"!<br>
              <br>
            </div>
            73, Renato<br>
          </div>
          <div class="gmail_extra"><br>
            <br>
            <div class="gmail_quote">No dia 19 de Fevereiro de 2014 &agrave;s
              11:21, AV <span dir="ltr">&lt;<a moz-do-not-send="true"
                  href="mailto:radiophilo@gmail.com" target="_blank">radiophilo@gmail.com</a>&gt;</span>
              escreveu:<br>
              <blockquote class="gmail_quote" style="margin:0 0 0
                .8ex;border-left:1px #ccc solid;padding-left:1ex">
                <div dir="ltr">
                  <div>
                    <div>
                      <div>
                        <div>
                          <div>
                            <div>
                              <div>Ol&aacute; Luis,<br>
                                <br>
                              </div>
                              Bom dia.<br>
                            </div>
                            Realmente o termo baixa frequ&ecirc;ncia era
                            aplicados aos telefones convencionais onde
                            as audio-frequ&ecirc;ncias viajavam pelos
                            condutores de cobre e n&atilde;o recorriam &agrave;
                            modula&ccedil;&atilde;o de uma portadora de alta
                            frequ&ecirc;ncia.<br>
                          </div>
                          <br>
                        </div>
                        Mesmo nos casos dos telefones fixos actuais
                        quando ainda se usa a "baixa frequ&ecirc;ncia" entre a
                        central e o telefone, a voz passa j&aacute; passa por
                        toda a sorte de dispositivos de microondas e j&aacute;
                        n&atilde;o se pode falar exclusivamente em "baixa
                        frequ&ecirc;ncia".<br>
                        <br>
                      </div>
                      No entanto a express&atilde;o ficou.<br>
                      <br>
                    </div>
                    <div>Tamb&eacute;m revela uma ideia interessante, que
                      embora a tecnologia de r&aacute;dio seja usada em
                      milhentas coisas, n&atilde;o &eacute; normalmente associada como
                      tal.<br>
                    </div>
                    <div>Ningu&eacute;m pega num telem&oacute;vel e diz: "vou falar
                      aqui pelo meu r&aacute;dio".<br>
                    </div>
                    <div><br>
                      <br>
                      73,<br>
                    </div>
                    Ant&oacute;nio Vilela<br>
                  </div>
                  CT1JHQ<br>
                  <div>
                    <div>
                      <div class="gmail_extra"><br>
                        <br>
                        <div class="gmail_quote">2014-02-19 10:55
                          GMT+00:00 Lu&iacute;s Garcia Filipe <span dir="ltr">&lt;<a
                              moz-do-not-send="true"
                              href="mailto:afterhours36@gmail.com"
                              target="_blank">afterhours36@gmail.com</a>&gt;</span>:<br>
                          <blockquote class="gmail_quote"
                            style="margin:0 0 0 .8ex;border-left:1px
                            #ccc solid;padding-left:1ex">
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                                <div dir="ltr">
                                  <div>
                                    <div>
                                      <div>
                                        <div>Bons dias.<br>
                                          <br>
                                          <br>
                                        </div>
                                        Aos colegas mais antigos, porque
                                        designamos por atender um
                                        telem&oacute;vel por "baixa frequ&ecirc;ncia"
                                        ?<br>
                                        <br>
                                      </div>
                                      Sendo que a frequ&ecirc;ncia mais baixa,
                                      representada pelo 2g GSM, andar&aacute;
                                      na casa dos 900 mhz, mais coisa
                                      menos coisa, n&atilde;o lhe dever&iacute;amos
                                      chamar por "alta-frequ&ecirc;ncia" ?<br>
                                      <br>
                                      <br>
                                    </div>
                                    Fica a duvida e a curiosidade<br>
                                    <br>
                                    73,<br>
                                    <br>
                                    <br>
                                  </div>
                                  CS7AEL<span><font color="#888888"><br
                                        clear="all">
                                      <div>
                                        <div>
                                          <div>
                                            <div>
                                              <div><br>
                                                -- <br>
                                                Cumprimentos;<br>
                                                <br>
                                                Lu&iacute;s Filipe Garcia S.
                                              </div>
                                            </div>
                                          </div>
                                        </div>
                                      </div>
                                    </font></span></div>
                                <br>
                              </div>
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    <pre class="moz-signature" cols="72">-- 
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= 
Callsign: CT7ABP
QRA: Pedro Ribeiro
GRID Locator: IM58mr
QTH: S&atilde;o Francisco, Alcochete, Portugal
NET: <a class="moz-txt-link-freetext" href="http://www.qrz.com/db/CT7ABP">http://www.qrz.com/db/CT7ABP</a>
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= </pre>
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