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<DIV dir=ltr align=left><SPAN class=570240816-19032010><FONT face=Tahoma>Caros
Miguel Tomas, CT2JUT e Paulo Fernandes, CT01135.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=570240816-19032010><FONT
face=Tahoma></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=570240816-19032010><FONT face=Tahoma>Nem uma
coisa "<STRONG>Data Aquisition Card</STRONG>", nem outra "<STRONG>Digital to
Analogue Converter</STRONG>"...tão "simples"...ainda gostava de saber onde está
a acrónimo, de: </FONT></SPAN><SPAN class=570240816-19032010><FONT
face=Tahoma><STRONG>DAC OUT</STRONG> - <STRONG>Audio Output Connector,
</STRONG>imaginem..?!</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=570240816-19032010><FONT
face=Tahoma></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=570240816-19032010><!-- Converted from text/plain format -->
<P><FONT size=2><FONT face=Tahoma
size=3>
_\\|//_<BR>
( o o
)<BR> ------------------ooO-(_)-Ooo------------<BR>
73 de:<BR> ************************************<BR> * CT1FBF /
João Gonçalves Costa <BR> * QTH Locator :
IM58kq <BR>
* CQ Zone: 14 / ITU Zone:
37 <BR> * E-mail and Adress, see
in:<BR> *
www.qrz.com <BR>
* QSL Card via Eqsl:
www.eqsl.cc <BR>
**************************************</FONT><BR></FONT></P></SPAN></DIV>
<DIV dir=ltr align=left><STRONG><FONT face=Tahoma>QS1R Receiver
Description</FONT></STRONG></DIV>
<DIV dir=ltr align=left><FONT face=Tahoma>
<HR>
</FONT></DIV>
<DIV dir=ltr align=left><FONT face=Tahoma>The QS1R is a software defined VLF
through HF, 10 kHz though 62 MHz direct sampling receiver.<BR><BR>It uses a 16
bit, 125 MSPS analog to digital converter (ADC) to digitize the whole RF
spectrum from 10 kHz to 62 MHz. The high speed 125 MSPS data stream is too fast
to transfer directly to the PC, so a Cyclone III FPGA implements a Digital Down
Converter (DDC) to reduce the sampling rate to something that the PC can handle.
Data is transferred from the QS1R to the PC via a high speed USB 2.0 connection
that can transfer up to 40 MBytes/sec to the PC.<BR><BR>The RF IN connector is a
BNC. There is provision for supplying an external encode clock through a SMA
connector. The QS1R requires a power source of 5-6 VDC at 1000 mA.<BR><BR>The
QS1R has its own audio DAC output instead of using the computer's sound card for
output. This results in very low audio latency important for CW use and use with
transmitters.<BR><BR></FONT></DIV>
<DIV dir=ltr align=left>
<HR>
</DIV>
<H2 id=toc3 dir=ltr align=left><A
name="QS1R Online Manual-1.1 QS1R Front And Rear Panel"></A><A
name="Front and Rear Panels"></A>1.1 QS1R Front And Rear Panel</H2>
<DIV dir=ltr align=left>
<HR>
</DIV>
<DIV dir=ltr align=left><IMG title="external image qs1r_front_sm.jpg"
alt="external image qs1r_front_sm.jpg"
src="http://www.philcovington.com/QuickSilver/images/qs1r_front_sm.jpg"><BR><FONT
face=Tahoma><STRONG>PWR</STRONG> - Power LED<BR>The power LED is illuminated
when 5-6 VDC is supplied to the DC IN connector on the rear of the unit. The
QS1R does not have a power switch and can be left on when not in
use.<BR><BR><STRONG>CLIP</STRONG> - Clip LED<BR>The clip LED illuminates when
the RF input to the RF IN connector exceeds the clipping level of the Analog to
Digital Converter (ADC). This occurs at approximately +10 dBm.<BR><BR><STRONG>RF
IN</STRONG> - Antenna Input<BR>The BNC connector is the antenna connector for
the QS1R Receiver.<BR><BR><STRONG>CLK IN</STRONG> - External Clock Input<BR>An
external clock can be used to clock the QS1R. Please see the section on external
clocking in this manual for further information. By default, the QS1R uses its
own internal clock.<BR></FONT><BR><IMG title="external image qs1r_rear_sm.jpg"
alt="external image qs1r_rear_sm.jpg"
src="http://www.srl-llc.com/images/qs1r_rear_sm.jpg"><BR><FONT
face=Tahoma><STRONG>DC IN</STRONG> - Power Input Connector<BR>Connect a center
positive 2.1 mm or 2.5 mm coaxial power plug supplying 5-6 VDC @ 1000 mA to this
connector.<BR><BR><STRONG>DAC OUT</STRONG> - Audio Output Connector<BR>The DAC
OUT is a 3.5 mm stereo jack for audio output from the QS1R. This output can
drive an external amplified speaker, a set of headphones, or can be fed into the
line input of your PC's sound card.<BR><BR><STRONG>USB 2.0</STRONG> - USB 2.0
High Speed Connector<BR>Data is transferred to/from the QS1R through a USB 2.0
high speed connection to the PC.<BR><BR><STRONG>I/O</STRONG> - IO/Expansion
Connector<BR>This Mini DIN</FONT> </DIV><BR>
<DIV class=OutlookMessageHeader lang=pt dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>De:</B> cluster-bounces@radio-amador.net
[mailto:cluster-bounces@radio-amador.net] <B>Em nome de
</B>pmafer<BR><B>Enviada:</B> sexta-feira, 19 de Março de 2010
15:47<BR><B>Para:</B> Resumo Noticioso Electrónico ARLA<BR><B>Assunto:</B> Re:
ARLA/CLUSTER: Imagine que lhe apetece ouvir as bandas todas ao mesmo
tempo.<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>Caro Miguel,</DIV>
<DIV> </DIV>
<DIV>Acho que eles estão-se a referir a "Digital to Analogue
Converter"...<BR><BR></DIV>
<DIV class=gmail_quote>2010/3/19 Miguel Tomaz <SPAN dir=ltr><<A
href="mailto:kongo127@hotmail.com">kongo127@hotmail.com</A>></SPAN><BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV><BR>Ola a todos!<BR> <BR> <BR> <BR>Eu nao conheço esse
dispositivo, mas ja usei um SDR via internet de uma universidade
algures na Holanda, que nao parece mau de todo.<BR> <BR>Mas na minha
opiniao o radioamador deve estar sempre preparado para alguma eventualidade,
portanto ter um radio que depende que outros dispositivos nao serve, ainda por
mais computadores que vejo o dia todo!<BR> <BR> <BR>Tecnicamente,
vejo uma tomada com o nome de DAC.<BR> <BR>Calculo que refira-se a
"Data Aquisition Card", que nesse mundo quem lidera actualmente e a National
Instruments...<BR> <BR> <BR>Fujam disso!!!
LoL<BR> <BR> <BR> <BR>73 de CT2JUT<BR> <BR>
<HR>
Date: Fri, 19 Mar 2010 14:17:44 +0000<BR>Subject: Re: ARLA/CLUSTER: Imagine
que lhe apetece ouvir as bandas todas ao mesmo tempo.<BR>From: <A
href="mailto:pmafer@gmail.com" target=_blank>pmafer@gmail.com</A><BR>To: <A
href="mailto:cluster@radio-amador.net"
target=_blank>cluster@radio-amador.net</A><BR><BR>800€=Roubo!!!<BR><BR></DIV><BR>_______________________________________________<BR>CLUSTER
mailing list<BR><A
href="mailto:CLUSTER@radio-amador.net">CLUSTER@radio-amador.net</A><BR><A
href="http://radio-amador.net/cgi-bin/mailman/listinfo/cluster"
target=_blank>http://radio-amador.net/cgi-bin/mailman/listinfo/cluster</A><BR><BR></BLOCKQUOTE></DIV><BR></BODY></HTML>