After a couple years of 'listening' I've finally joined.
Thank you all for your help -- even if you didn't know you
were giving it. I'm still learning some of the basics
and thought y'all might help out again. I'm new to using
an antenna analyzer. Used to simply use the SWR bridge.
I'm constructing an inverted L for 160m and am unsure of how
to proceed. My MFJ269 tells me the following:
Freq Rad. Resis XL SWR
1.9 45 155 13.5
1.7 32 28 2.3
I haven't measured my ground characteristics, but judging by
the general documentation available for this area and the
large amount of clay around I figure its poor.
My question is this. If antenna efficiency is:
eff = Rrad/(Rrad+Rloss)
and I don't change Rloss by running more radials or some
such (I ran out of wire and want to play in the NAQP next
weekend); would I be better off leaving the length as is and
cancel the inductive reactance with a capacitor, or should I
keep on trimming the antenna. If keep trimming, how far?
Until Xl is zero and then match the antenna using
a transformer or antenna tuner?
Kevan
NS4T
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