This ad appeared 75 years ago today in the May 1944 issue of Broadcasting. It shows the facilities of WMTW, one of the stations of the Yankee Network’s FM network, broadcasting from Mount Washington, New Hampshire.

The network relied upon daisy-chaining the signals, and WMTW received its signal from WGTR, Paxton, Mass., 142 miles away, on 44.3 MHz, and rebroadcast on 43.9 MHz.