OH1TV   OH1O   OH1WX
		Angle of radiation
		Horizontal dipole or equivalent					Antenna
		λ/2 / 2h = sin θ
		θ = asin ( λ/2 / 2h)
		h	30	m
		f	14.2	MHz
		θ =	10.14	deg										Ground
		The same, when h is given in λ
		h / λ	θ
		0.25	90.00
		0.26	74.06
		0.28	63.23
		0.3	56.44				Image antenna
		0.35	45.58
		0.4	38.68
		0.45	33.75
		0.5	30.00
		0.55	27.04
		0.6	24.62
		0.65	22.62
		0.7	20.92
		0.75	19.47
		0.8	18.21
		0.85	17.10
		0.9	16.13
		0.95	15.26
		1	14.48
		1.1	13.14
		1.2	12.02
		1.3	11.09
		1.4	10.29
		1.5	9.59
		1.6	8.99
		1.7	8.46
		1.8	7.98
		1.9	7.56
		2	7.18
		2.1	6.84
		2.2	6.52
		2.3	6.24
		2.4	5.98
		2.5	5.74
		2.6	5.52
		2.7	5.31
		2.8	5.12
		2.9	4.95
		3	4.78
		19.3.2010
		Pekka, OH1TV
		Back														27.4.2012