Don't look at just SWR!! Look at the complex impedance R +/- jX. Look at
the sign of the complex term, the +/-jX. If it is negative, it is
capacitive and needs lengthening. If it is positive, it is inductive and
requires shortening.
Dave - W?LEV
On Mon, Jul 25, 2022 at 6:33 PM DOUGLAS SEWELL via groups.io <douglassewell=
[email protected]> wrote:
Using formula 234/freq for a 1/4 wave vertical with 4 radials I was
building gave me a wire length of 16 feet 6 and 1/8 inches. Nano vna gave
swr of 2.3 (too high for my qrp station) so tried to find out whether to
shorten or lengthen wire. How can I use the nano vna to help with the
direction to go. eventually lengthened by 6 inches which brought swr down
to 1.3.
As a newbe to short wave radio tx/rx and to nano vna can anyone help with
an easy to follow method to use my nano vna for wire adjustment direction.
Thanks but difficult just now after suffering 2 strokes so hence the need
for help here.
Thanks and 73 to all who read this.
Doug MM7DSA
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*Dave - W?LEV*
*Just Let Darwin Work*
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Dave - W?LEV
