Page:CAB Accident Report, United Airlines Flight 16.pdf/25

 -23- Building at th.Salt Lake City Airport. The control lines between the con- trol station and the radio range station, whioh are leased from the local telephone company, are partly underground and partly overhead. In addition, to the range and positive station location marker installed at Salt Lake City, fan markers* were installed on each of the four logs of the range and additional range stetions established at three points in the Salt Lake Valley. The fon Barkers wore located as follows: Leyton, Utah - On the norti lec approximately 18 miles north of the Salt Leke range, Coolville, Utah - On the east leg approximately 30 miles east of the Salt Lake range, Riverton, Utah - On the south Les approximately 19 miles south of the Salt Lake ru; Timpie, Utah - On the **st live aproximately 37 miles west of the Salt Lake range, The three rungo stations more: A meu iw power vertical radiator type range and voice station with positive station location marker at Plymouth, Utah - 78 miles north of the Salt Iako station; a medium power vertical radiator type range and voice station with positive station location marker at Wendover, Utah - 106 miles west of the Salt Lake station; and a medium power loop type range and voice station at Tintic, Utah - 64 miles south southwest of the--Selt Lake stëtion. In the fall and winter of 1938, after the Salt Lake City range had been modernized, difficulty was encountered in the maintenance of the course alignment ard in obtaining good course definition. Thereafter, udditional A fan marker is a trunsmitter installed on a range leg some number of miles from the radio range and which produces a fan-shaped area of signal concen- trated in the immediate vicinity of the location of the fan marker.