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style="LAYOUT-GRID-MODE: both; FONT-FAMILY: 'Times New Roman'; mso-ansi-language: EN-GB"><o:p><FONT
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<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial">Carlos,
<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office"
/><o:p></o:p></SPAN></P>
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style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial"><o:p> </o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial">São
as seguintes as especificações:<o:p></o:p></SPAN></P>
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style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial"><o:p> </o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial">Bandwidht:
4.5 MHz @ -40 dB<o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial">Encoder
MPEG2, sistema Fujitsu single chip MPEG-2, LSI MB86390<o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial"><o:p> </o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-GB
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial; mso-ansi-language: EN-GB">DVB-S
Base Band Processor: Xilinx Spartan2 XC2S200<o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-GB
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial; mso-ansi-language: EN-GB"><o:p> </o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-GB
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial; mso-ansi-language: EN-GB">Modulator:
(IC with integrated 90_ phase shifter) RF2422 (RFMD de 0.8 a 2.5
GHz)<o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-GB
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial; mso-ansi-language: EN-GB">Oscillator:
MAX2620 VCO, SMD tank circuit, tunable between 1200 and 1300
MHz.<o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-GB
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial; mso-ansi-language: EN-GB"><o:p> </o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-GB
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial; mso-ansi-language: EN-GB">Modulation:
DVB-S (DVB-Satellite, quadrature phase shift keying -
QPSK).<o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial">A
opção do DVB-S, é pela variedade de receptors de satellite, disponíveis, de
900<I>MHz a </I>2<I>GHz.<o:p></o:p></I></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial"><o:p> </o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial">Estão
também a empregar outras modulações (talvez sejam menos prováveis de
persistir): <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial"><o:p> </o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial">DVB-C
(DVB-Cable, quadrature amplitude modulation - QAM) ou ainda
<o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial">DVB-T
(DVB-Terrestrial, </SPAN><SPAN lang=EN-GB
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial; mso-ansi-language: EN-GB">orthogonal
frequency division multiplex - OFDM. <o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-GB
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial; mso-ansi-language: EN-GB"><o:p> </o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-GB
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial; mso-ansi-language: EN-GB">73,
Mariano<o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-GB
style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: both; mso-bidi-font-family: Arial; mso-ansi-language: EN-GB"><o:p> </o:p></SPAN></FONT></o:p></SPAN></P></DIV></BODY></HTML>