Final answer:
The separation distance for aircraft more than 40 miles from the antenna site is not specified in the reference material provided. It is advised to consult the specific air traffic control regulations or the air traffic management system's operating procedures.
Step-by-step explanation:
The question relates to the procedures for maintaining safe separation of aircraft in airspace, particularly when more than 40 miles from the antenna site. According to the Federal Aviation Administration's regulations, commercial aircraft must keep a separation of five miles from another plane flying at the same altitude, with a vertical separation of 2,000 feet above and below another aircraft (1,000 feet when below 29,000 feet altitude). However, this specific separation distance for aircraft more than 40 miles from the antenna site is not provided within the reference material. Typically, such separation standards can depend on the specific airspace and the available radar or air traffic control capabilities. To find the correct answer, air traffic control regulations or the specific air traffic management system's operating procedures should be consulted.