Input vs. Output

[Jeramy Thibodeaux]

      SWR = (ÖPf + ÖPr) / (ÖPf - ÖPr)



----- Original Message ----- 
From: "Mel Vance" <icra at GALAXYNET.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Saturday, December 10, 2005 6:45 PM
Subject: Re: [HEATH-TEMPE] Input vs. Output


>>
>> The common availability of OUTPUT meters came much later
>> with the development of solid state diodes.  The ability to measure
>> fwd and
>>
>> reflected power and then calculate the VSWR was quite a blessing (I
>> think). Now we take for granted what the SWR meter tells us when we
>> connect our rigs to an antenna.
>>
> OK....I know that you can use the FWD and REF power levels to figure out 
> the
> SWR.....
>
> Only problem....with all the SWR meters available, I have forgotten 
> how....
>
> Now find myself without an SWR meter for VHF/UHF, but do have a power 
> meter
> that reads both forward and reflected power....
>
> How do I figure the SWR?
>
> Mel
> N7OKL
>
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