angles appearance communicating communications communications-equipment concave connecting dish distant distinctive electrical-signals electromagnetic equipment exterior external height high light mobile-phones modern parabolic parabolic-reflector radio-waves receivers receiving round satellite-dish satellite-dishes sending Signals steel steel-structure technical technology telecommunications telephones tower towering transmission transmissions transmitters transmitting water-tower abstract architectural backdrop background barrier brick brick-wall bricks brickwork cement colored coloring colors coloured colouring colours constructed firm linear lines mortar perspective perspectives rectangular rough secure security solid standard strength strong style surface surfaced surfaces texture textured textures traditional-brick-wall variation varied various wall walled wallpaper well-built rough-work purple smooth corner clean curved curving