 LeTourneau, who had previously built America's first all-steel radio studio at a station in Portsmouth, New Hampshire, constructed KLTI's studios using then-new concrete techniques.KLTI was built alongside an FM outlet, KLTI-FM 105.9; the FM license was cancelled at LeTourneau's request in 1955.In 1959, LeTourneau sold KLTI to the Bridge and Mahone families, doing business as Radio Longview, Inc.; the new ownership also ran KMHT at Marshall.