[AMPS] Re: The Worldwide, No Holds Barred, SWR Quiz.
measures
measures@vcnet.com
Mon, 4 Oct 1999 16:57:10 -0700
>
>measures wrote:
>
>>> The impedance of the load will appear to vary
>>>as you move down the line (if it is different than the characteristic
>>>impedance), but the SWR won't.
>>>
>>€ Impedance changes but indicated SWR won't?
>
>Not if the impedance of your transmission line is the same is the
>impedance of your source. Draw it out on a Smith Chart, Rich.
>
€ In this case, the impedance of the source/generator is zero ohms, the
characteristic impedance of the half wavelength transmission line is 93
ohms, and the termination is 50-ohms.
>You move along a constant VSWR circle with 50 Ohms as the center of that
>circle. The radius of the circle is the magnitude of the VSWR. This
>assumes a 50 Ohms sytem and a Smith Chart normalized to 50 Ohms.
>
"This is assuredly not a 50 ohm system due to the presence of the half
wavelength 93-ohm coax."
- Rich..., 805.386.3734, www.vcnet.com/measures.
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