Air Force One Radar

The story goes that Air Force One was over the UK a few years ago and called up a USAF base:

- Requesting Radar.

- What is you position? - asked ATC

- You got radar you find us - Air Force One replied.

After a few minutes ATC announced:

- Air Force One we're changing frequency

- What frequency are you changing to? - asked Air Force One

- You've got 720 channels - you find us! - ATC replied.