A NEC4.2 model of a tee using a 60-ft tall vertical conductor shows 29 -j
0.04 ohms at 1.9 MHz when connected at the top to the center of a horizontal
conductor 89 feet in length.
The tee was base-driven against 16 x 33-foot radials buried 4 inches in 5
mS/m, d.c. 13 earth. Conductor ODs are 3 mm.
Feedpoint SWR is less than 1.5:1 over a 60 kHz bandwidth (referenced to 29
ohms).
Maximum far-field antenna system gain is -0.73 dBi @ 24 degrees elevation,
excluding any matching losses.
_________________
Topband Reflector Archives - http://www.contesting.com/_topband
