[AMPS] Hold on - SWR meter placement

[Jon Ogden]

bob alexander wrote:

>Jon,
>
>Emin = Emax defines a 1:1 VSWR so how can the voltage vary with a 1:1
>VSWR?

Bob,

The voltage on a coax due to an RF signal is a sinusoidal voltage whose 
period is 1/F.  As with any sinusoid, the voltage of the signal varies 
over the course of its cycle.  In a situation with a 1:1 VSWR, the peak 
voltage and minimum voltage on the standing wave are of equal value.  
Notice that VSWR is defined in terms of "peak" and "minimum."  If the 
voltage didn't vary, how would you have a "peak" and a "minimum" in the 
first place?

73,

Jon
KE9NA


-------------------------------------
Jon Ogden
KE9NA

http://www.qsl.net/ke9na    <--- CHECK IT OUT!  It's been updated!!!!!


"A life lived in fear is a life half lived."


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