2. Assume that an HF communication link between two points on earth at a distance of 2500 km is to be established using reflections from F1 layer with a virtual height of 200 km. The critical...

Extracted text: 2. Assume that an HF communication link between two points on earth at a distance of 2500 km is to be established using reflections from F1 layer with a virtual height of 200 km. The critical frequency is 5 MHz and the recombination coefficient at a distance of 8500 km. d. Ignoring collisions, determine the refractive index of the ionosphere at 200 km virtual height for the MUF. e. Ignoring collisions, determine the refractive index of the ionosphere at 200 km virtual height for the OWF.