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Hello everybody,
I am looking for hints how to solve the following problem.
I would like to feed two PA=B4s with different drive power
requirements with one TRX. One needs some 100 W and the
other 60 W for full power output. The solution has to be only for=20
one band. One chance is to split the power from TRX but then
there is not enough power for the one with 100 W drive. Another
chance is to drive the 100W drive to first one and then split on the
high power level ( abt 1kw /TL922/ ). Then I need 60W on one side=20
( Alpha 91 B ) and the rest to feed one of the antennas.
Any hints and info on this matter ?
Thanks in advance for any response.
Dan OK1DIG
mailto: ok1dig@iol.cz
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<DIV><FONT color=3D#000000 size=3D2>Hello everybody,</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>I am looking for hints how to solve =
the=20
following problem.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>I would like to feed two PA´s =
with=20
different drive power</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>requirements with one TRX. One needs =
some 100 W=20
and the</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>other 60 W for full power output. =
The solution=20
has to be only for </FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>one band. One chance is to split the =
power from=20
TRX but then</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>there is not enough power for the =
one with 100 W=20
drive. Another</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>chance is to drive the 100W drive to =
first one=20
and then split on the</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>high power level ( abt 1kw /TL922/ =
). Then I=20
need 60W on one side </FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>( Alpha 91 B ) and the rest to feed =
one of the=20
antennas.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>Any hints and info on this matter =
?</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>Thanks in advance for any =
response.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>Dan OK1DIG</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>mailto: <A=20
href=3D"mailto:ok1dig@iol.cz";>ok1dig@iol.cz</A></FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV></BODY></HTML>
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