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The Oregonian had earlier constructed an iconic building on the corner of Sixth and Alder Streets,  the first steel-frame building wests of the Mississippi, which featured a huge clock tower.  KGW's transmission equipment was located at the top of the clock tower along with the station's primitive "studio."  At that time a radio transmitter required two towers with the transmission wire(s) stretched between them.  One such tower was located on the clock tower roof and the other on the Northwestern Bank Building, a full block away, with the transmission wires stretched between them high above Alder Street.