> capacitance to the series cap in the shunt feed and measured the Z, I
> could see it come down as I added more C -- in other words, it behaved
> as I expected. I found that with 440 pf in series, my Autek RF-1 says
> that minimum Z occurs at 47 ohms at 1895 khz. It is a relatively
> sharp minimum.
Z is not R. Only R=50 j=0 is a 1:1 SWR referenced to 50 ohms.
Z=50 can be an infinite SWR, or perfect, or anything in between.
> Yet when I switch the meter to SWR, it says it is off-scale high. Is
> this possible? Doesn't minimum Z (R+j0)represent resonance? And if
Not in a high Q system that is changing resistance rapidly with
What is R and X?
73, Tom W8JI
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 100 feet for under $1500!! http://www.anwireless.com
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Administrative requests: towertalk-REQUEST@contesting.com