Alan, and All,
The top atttachment for the tower end of the horizontal wires at is at 100
feet, these 390 foot long wires fan out from the vertical portion at a ~55
degree angle to eachother and the other two ends are at ~63 and ~70 feet
respectively. There is ~10 ft of sag in the wires.
One person who gave me early help with the calculation said that the lower
attachment points of the wires out away from the tower also lowered the
effective height of the vertical portion of the antenna significantly, being
as low as the lowest part of the horizontal wires, and that is how I ended
up with the number 2.85 for the antenna current for 1 W ierp.
Is capacity hat wire elevation significant in the calculations?
There are now four different numbers from as many people, and I am unsure
how to proceed. LF seems to be significantly art and partially science.
:o)
I moved the thermocouple type RF ammeter to the line between the matching
transformer and the loading coil and it reads exactly the same, 2.8 Amps.
Would it work better for me to wind a new matching transformer at the
antenna on an iron or ferite core. Is a metallic core likely to improve
what I am seeing? If so, would a TV core do the job? The existing XER is
a bifilar wound 1:1 air solenoid type.
J.
VY1JA
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