The entire lower white donut ring around the bottom of the CN tower is a radome, inside are ptp microwave dishes. It was a lot more relevant in the era before s

The entire lower white donut ring around the bottom of the CN tower is a radome, inside are ptp microwave dishes. It was a lot more relevant in the era before singlemode fiber went everywhere. Looks like this inside. https://www.jagelectromagnetics.com/images/jag_cataloug_images/JAG_Catalogues_CN_Tower.jpg https://www.jagelectromagnetics.com/images/jag_cataloug_imag... Nowadays there is some 2.0GHz band ENG stuff up there for live news gathering stand ups.