Dear friends,
I bought an Astron Power Supply, model RS-70M. However when I turn on the
amplifier on 80
meters with at least 400w the power supply stop working and I need to wait a
couple of
seconds to turn it on again. Two things:
1) This problem happens with the Astron only...I have also a Kenwood PS52 and
it works ok
with the amp on.
2) It happens only on 80 meters....In other bands I can operate with 1kw
without problems.
It sounds for me that the excessive RF on 80 meters is activating the Astron
Power Supply
protection circuit.....But how can I fix it??
73 and thanks
Carlos PT2HO / PY1CAS
ps. My rig is an Icom IC746, my amplifier is an Ameritron AL80B (1kw pep) and
the antenna
is a low dipole for 80.
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