Abstract This paper presents three feasible methods to serve specialist users within a service area of up to 150 km diameter by using spot-beam gigabit wireless communication links from high-altitude platforms (HAPs). A single HAP serving multiple spot beams coexists with terrestrial systems. all sharing a common frequency band. The schemes provided in the paper are used to adju... https://mabelandfoxs.shop/product-category/baby-rattle/