model("vertical-moxon-20m") {
	real A, B, C, D, E, height, wire_gauge, tube_gauge, segments;
	element driven_top, driven_center, driven_bottom, refl_top, refl_center, refl_bottom;
	
	wire_gauge = #19; // ~0.75 mm^2
	tube_gauge = #2; // tube dia = ~6 mm
	segments = 11;

	// real antenna will be ~4% shorter because of the isolation
	A = 7.30;
	B = 1.20;
	C = 0.5; // 0.3-0.5. lower value lowers resonant frequency
	D = 1.40;
	E = B+C+D;
	height = 1.0; // 0.5-1.0 is OK
			
	driven_center = wire(0, 0, height, 0, 0, height+A, wire_gauge, segments);
	driven_top = wire(0, 0, height+A, -B, 0, height+A, tube_gauge, segments);
	driven_bottom = wire(0, 0, height, -B, 0, height, tube_gauge, segments);
	
	refl_center = wire(-E, 0, height, -E, 0, height+A, wire_gauge, segments);
	refl_top = wire(-E, 0, height+A, -E+D, 0, height+A, tube_gauge, segments);
	refl_bottom = wire(-E, 0, height, -E+D, 0, height, tube_gauge, segments);
	
	voltageFeed(driven_center, 1.0, 0.0);

	azimuthPlotForElevationAngle(18);
	elevationPlotForAzimuthAngle(0);

	setFrequency(14.130);
	// frequencySweep(13.7, 14.7, 40);
	
	// averageGround();
	goodGround();
}