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<DIV>Steve</DIV>
<DIV> </DIV>
<DIV>Yes, I have been using the PA/LP filter brick from a discarded FT-747 for a
number of years.</DIV>
<DIV>First with an SDR-1000 (original 3 board system 2003 era), and since
Penelope and the rest</DIV>
<DIV>have been available it has been in service ever since. I use this as my
primary rig, but some</DIV>
<DIV>things to be aware of. No 6 meters unless you modify the 10 meter LPF and
then very little</DIV>
<DIV>drive available. I have since forgotten what it was, but not very
useful.</DIV>
<DIV> </DIV>
<DIV>Be very careful where, when and how you apply drive to the module as it
only takes a few</DIV>
<DIV>milliwatts to drive it. I use a 20 db attenuator right on the output of
Peny, or you can disable</DIV>
<DIV>the final PA on Peny and take the drive from pin 1 & 3 of JP2 if you
retain the onboard filter.</DIV>
<DIV> </DIV>
<DIV>I also employ the T/R switching on the brick, so no need for additional
relays. You will need</DIV>
<DIV>a way to source drive the LPF and you can use a neat circuit that WW2R
devised. </DIV>
<DIV> </DIV>
<DIV><A title=http://g4fre.com/hpsdr_high_side.pdf href="http://g4fre.com/hpsdr_high_side.pdf">http://g4fre.com/hpsdr_high_side.pdf</A></DIV>
<DIV> </DIV>
<DIV>Good luck</DIV>
<DIV> </DIV>
<DIV>73 de Joe K1RQG</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 3/28/2011 10:48:11 A.M. Eastern Standard Time,
snance@charter.net writes:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 10px; MARGIN-LEFT: 10px"><FONT style="BACKGROUND-COLOR: transparent" face=Arial color=#000000 size=2>*****
High Performance Software Defined Radio Discussion List *****<BR><BR><BR><BR>
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<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: 'Arial','sans-serif'">Has anyone taken
the amp and filters from a Yaesu and used them with HPSDR
(Penelope/Mercury/Metis)? I searched the archives, but didn’t get any
hits.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: 'Arial','sans-serif'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: 'Arial','sans-serif'">I have an old FT1K
MK5 (200 watt) in storage just begging to be used for something
useful.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: 'Arial','sans-serif'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: 'Arial','sans-serif'">73, Steve
K5FR<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN style="FONT-SIZE: 11pt"><o:p> </o:p></SPAN></FONT></P></DIV><BR><BR>_______________________________________________<BR>HPSDR
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