 Initially, Mount Ainslie (approximately 10 km north-east of Canberra's city centre, at an elevation of 842 m above sea level) was considered as a potential transmitter site.It was turned down, however, because it was already under the control of the Department of Civil Aviation (who would be unwilling to surrender or lease the site due to its proximity to the Airport and the Air Force base).It was also determined that a transmitter located atop Mount Ainslie would not provide ample coverage of the entire Canberra area (notable black-spots would have included the Woden and Belconnen districts), nor would there be enough room for the ABC's television transmitter (whose service was due to commence in December 1962) as well as CTC.