Re: QDX - protection of BS17O PA
|
Hi Chris
I measured voltage in the open load and short-circuit cases, in the case of open load, the current was low. In the case of shorted, the current was high. In neither case was the voltage anywhere near the 60V limit. So the open question is indeed, is anything worse than open or short... is a particular type of bad SWR possible that does cause high voltage? If so, what... and needed to be experimentally verified too...?
So I have not yet come across?a high voltage case. But high current, yes.?
One thing I'm wondering about is how can the worst conditions for
the transmitter be generated?? Using a passive network of course.?
Connecting to another transmitter is going too far.
People say there are two options, high voltage and high current,
obviously both need to be considered.
Is there anything worse than an open or shorted transmission
line? Both reflect all the power back to the transmitter (ignoring
losses) and what you get back depends on the electrical length of
the line and the frequency.
As for monitoring SWR and using it to reduce power, bring it on!
Chris, G5CTH
|
