public void TropesphericLoss(double a, double b, double c)
        {
            TropesphericModel m = new TropesphericModel();
            double            d = m.CalculateTheLossDueToTropesphere(a, b);

            Assert.AreEqual(c, d, 0.0001);
        }
        public void Tropesphere_Calculate_Values_At_Height(double pHeight, double a1, double b1, double c1, double d1)
        {
            double a, b, c, d;

            model_ = new TropesphericModel();
            model_.CalculateValuesAtHeght(pHeight, out a, out b, out c, out d);

            Assert.AreEqual(a1, a, 0.0000000001);
            Assert.AreEqual(b1, b, 0.0000000001);
            Assert.AreEqual(c1, c, 0.0000000001);
            Assert.AreEqual(d1, d, 0.0000000001);
        }