Posted by
Gary Ferdinand on
Feb 24, 2012; 4:57pm
URL: http://elecraft.85.s1.nabble.com/high-power-tuner-tp7314904p7315349.html
Ian,
Unfortunately, I'm in the same boat: Looking for an antenna tuner that
*truly* supports high power. I was hoping the Palstar balanced tuner
BT1500A was it, but I found it less than robust when processing 1500 W. The
tuner (fine print) is not spec'd for 1500 continuous, so forget RTTY/etc and
beware full power tune-ups. The input balun toasts quite nicely. Also, the
relay that switches the large section of the capacitor in/out failed on me,
with the inner insulation of that relay bubbling up out of the core. The
tuner ought to run relays energized forever. Mine did not. I had left it
configured that way (ten meters) overnight. My bad, apparently. YMMV of
course.
If you ever find one that will tolerate 1.5 kW into various loads, please
post it.
FYI, I'm using that tuner to match to a 260' dipole, center fed with nominal
600-ohm OWL (constructed using Ladder Snaps).
73 and GL!
Gary W2CS
>All,
>
>I find myself finally admitting that I need an antenna tuner that
>supports high power. I run a K3/P3 combo with an Ameritron AL-811H amp.
>Since we are still waiting on word about pricing and release date for
>the KAT500, I find myself looking at other alternatives for a 1 - 1.5 KW
>auto tuner.
>What are others using? Several people I know have had issues with the
>LDG AT-1000PRO, so I probably want to stay away from that one.
>
>Thanks in advance for the advice.
>
>73,
>
>-- Ian
>Ian Kahn, KM4IK
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