wiki.mbirth.de

All you never wanted to know

View on GitHub
:new: 2008-08-11 :wavy_dash: :up: 2010-03-12

NASA Roger Beep

The “Roger” beep after transmissions from Space missions is @ 2475 Hz for 250 ms. According to everything2, there should be a pre-transmission tone @ 2525 Hz for 250 ms. They are called Quindar tones.

Loading Google+ comments…