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>From OZ4XF Henning
I have bought an old argonaut 509 recently and it's fun to rediscover =
cw, but I have a problem about=20
receiver performance.
So can anybody help with an article from ARCI journal about adding a =
crystal filter to the argonaut 509 ?
and perhaps other articles on improving receiver selectivity.=20
My email is mikkelsens@mail.tele.dk
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<DIV><FONT color=3D#000000 size=3D2>From OZ4XF Henning</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>I have bought an old argonaut 509 =
recently and=20
it's fun to rediscover cw, but I have a problem about </FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT><FONT size=3D2>receiver=20
performance.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>So can anybody help with an article =
from ARCI=20
journal about adding a crystal filter to the argonaut 509 ?</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>and perhaps other articles on =
improving receiver=20
selectivity. </FONT></DIV>
<DIV><FONT size=3D2>My email is <A=20
href=3D"mailto:mikkelsens@mail.tele.dk";>mikkelsens@mail.tele.dk</A></FONT=
></DIV></BODY></HTML>
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