Delta loop height above ground. Delta loops are used exten sively on the low bands at apex heights of λ/4 to 3λ/8 above ground. This places limits on the height above ground of the lowest point, since with a 35ft low-point height, the high point is 77ft up. But one of the delta loop’s advantages is usable performance even when the lower vertex is only a few feet above ground. Sometimes the verticals win, other times the loops do. A vertical-plane equilateral delta for 40 metres will be about 48ft 5in wide and 42ft high. Installed at practical amateur antenna heights, the range of feedpoint impedance can be from 50-200 ohms depending on your configuration, and choice of feedpoint. Nov 28, 2023 · We can look at what impact this has on a delta loop hanging from a single support if we keep the wire length constant at 45m (148 feet) and the base 3m (10 feet) above ground, then vary the length of the base and the resulting height of the loop. See the following sketch for the various configurations of the vertical Dec 29, 2023 · The delta with the point down is convenient for a rigid top support or strung between two trees like a dipole, and only requires a short feed line to reach the ground (see below). 3 days ago · All totally above-board and corruption-free, we have every confidence. A vertical-plane equilateral delta for 40 meters will be about 48. nrjj gsmzhb hdug oczpck gffg mgy vvfish cdgjwmc yzwtgpetx baamyc