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<DIV><FONT size=2 face=Arial>Muito bom </FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Custa e 16.000 € + iva</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>73</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>CT1COU</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=joao.a.costa@ctt.pt href="mailto:joao.a.costa@ctt.pt">João Gonçalves
Costa</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=cluster@radio-amador.net
href="mailto:cluster@radio-amador.net)">CLUSTER (cluster@radio-amador.net)</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, February 06, 2012 11:38
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> ARLA/CLUSTER: Antenna Tuner
automatico para HF ACOM 03AT</DIV>
<DIV><BR></DIV>
<DIV class=WordSection1>
<P class=MsoNormal><SPAN lang=EN-US>The Automatic HF Antenna Tuning Unit
(AATU) model ACOM 03AT is a complete and self-contained unit for automatic
matching of HF symmetrical antenna impedance to an unbalanced 50 Ohm output,
that covers a continuous 1.8 to 16MHz frequency range and will withstand
200 to 2500W input power depending on the antenna SWR.<o:p></o:p></SPAN></P>
<P class=MsoNormal><A
href="http://www.cqdx.ru/ham/wp-content/uploads/2012/01/Screen-Shot-2012-01-28-at-5.25.05-PM.jpg"><SPAN
style="COLOR: windowtext; TEXT-DECORATION: none; mso-fareast-language: PT"><IMG
id=Imagem_x0020_1 border=0
alt="Descrição: http://www.cqdx.ru/ham/wp-content/uploads/2012/01/Screen-Shot-2012-01-28-at-5.25.05-PM.jpg"
src="cid:EA190C997E894505B15CEEB1B3F0D023@tmnPC" width=610
height=306></SPAN></A><B><SPAN lang=EN-US><o:p></o:p></SPAN></B></P>
<P class=MsoNormal><B><SPAN lang=EN-US>Features</SPAN></B><SPAN
lang=EN-US><BR>• Easy to operate. The only operator obligation is to apply CW
power while the matching process is fully automatic.<BR>• Guards your
transmitter during the tuning process against excessive impedance mismatch via
inserting a powerful attenuator at the input, and removing it after that.
Protected against relays “hot” switching, excessive antenna voltage,
overheating etc.<BR>• Remote matching – less losses in the feed line. The main
(remote) unit design complies outdoor-installation requirements. This permits
you to locate it closely to the antenna feed-points, thus considerably
reducing the high-SWR RF path length.<BR>• Operates automatically with any
transceiver without special signals – 10 to 100W CW for several seconds is the
only requirement to perform automatic impedance matching.<BR>• Optical control
link (up to 50m) between RCU and remote AATU unit. This avoids erratic control
at a strong electromagnetic RF field which is the typical case in the
near-field zone of an antenna when emitting 1-2kW.<BR>• Nonvolatile memory for
99 different user’s tuning settings and selection of the power-on
default.<BR>• Resource-estimate function (STATUS) giving the percentage of
inductors and capacitors involved to achieve a match. This offers a
possibility for monitoring the condition of the RF path and the antenna, thus
to forewarn possible problems.<BR>• Features BYPASS function, performed by
default also when powered off, where the effect of the inductors and
capacitors on the impedance is excluded for broadband operation (the balun
transformer still inline).<BR>• Protected against atmospheric electricity via
sphere spark gaps and a bleeder choke.<BR>• Options: Unbalanced output with 50
Ohm UHF(SO239A) connector; Control for the ACOM2000A HF linear amplifier and
forACOM2000S automatic antenna selector; PC control via RS232 or RS422 serial
port; Nonvolatile memory for user tunings.<o:p></o:p></SPAN></P>
<P class=MsoNormal><B><SPAN lang=EN-US><o:p> </o:p></SPAN></B></P>
<P class=MsoNormal><B><SPAN lang=EN-US>Specification</SPAN></B><SPAN
lang=EN-US><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>• Frequency coverage: 1.8 – 16MHz
continuously; extensions and/or changes on request.<BR>• Maximum input power,
PEP or CW, RTTY, FM, digital etc. (no mode limit), 100% duty
cycle:<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>at antenna SWR up to 3:1 – 2500W, 97%
efficiency;<BR>- up to 5:1 – 1600W, 95% efficiency;<BR>- up to 10:1 – 1000W,
92% efficiency;<BR>- up to 20:1 – 500W, 85% efficiency;<BR>- up to 50:1 –
200W, 60% efficiency.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>• Input data:<BR>- nominal impedance: 50
Ohm unbalanced, connector type UHF/PTFE (SO239A);<BR>- input SWR during AUTO
TUNE procedure: 1.7:1 max;<BR>- input SWR during OPERATE (matched): 1.5:1 max
(1.2:1 typical)<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>• Matching capability (antenna impedance
range, SWR in respect to the nominal load impedance 200 Ohm balanced):<BR>-
1.8-16MHz: up to SWR 10:1 (20 Ohm – 2kOhm).<BR>- 3-14MHz: up to SWR 20:1 (10
Ohm – 4kOhm);<BR>- 6.5-12MHz: up to SWR 50:1 (4 Ohm –
10kOhm);<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>• Nonvolatile memory for 99 different
user’s tuning settings and selection of the power-on
default.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>Price: TBD<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US><A href="http://www.acom-bg.com"
target=_blank>Link</A></SPAN> <SPAN lang=EN-US><o:p></o:p></SPAN></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal><B><SPAN lang=EN-US>Fonte: SPARKY's
Blog<o:p></o:p></SPAN></B></P>
<P class=MsoNormal><o:p> </o:p></P></DIV>
<P>
<HR>
<P></P>_______________________________________________<BR>CLUSTER mailing
list<BR>CLUSTER@radio-amador.net<BR>http://radio-amador.net/cgi-bin/mailman/listinfo/cluster<BR></BLOCKQUOTE></BODY></HTML>