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Old March 13th 07, 05:41 PM posted to sci.electronics.design,sci.electronics.basics,rec.radio.amateur.antenna
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Default VSWR doesn't matter?


"Dan Bloomquist" wrote in message
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Jimmie D wrote:
"Dan Bloomquist" wrote in message
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Hi Jimmie,
Keep in mind I'm answering in the context of the op's post. And the
theoretical SWR on a stub is infinite. The point of the stub at the
antenna is to keep the SWR on the transmission line in a reasonable range,
to make a match if you will. To put high SWR on the feedline instead of
matching at the antenna isn't a great idea in my book.


Sure yoiu can, that stub is a transmission line. It would matter if it s a
1/4 wl long or 21 1/4 wl long. If it is designed to handle the current and
voltage peaks it can transmit power with low loss when a high VSWR is
present. Its just that most people dont make there feedlines out of inch
copper tubing. Even with 450 ohm ladder line 10:1 VSWR is very acceptable.


 
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