During the 1920s the station's frequency changed to 830, 760, and then 1010.
The frequency does not change when the speed is slowed by passing through glass or other matter.
On January 30, 2006, the 1090 frequency changed formats again.
As it moved, the frequency changed, first dropping, then raising again.
If they were different, the properties and frequencies of matter interactions would change as well.
The frequencies can change back to one set signal after this point.
Its frequency has changed throughout the years from 1310, 1440, and most recently 1370.
The frequency (and hence the energy) does not change when the light goes from vacuum into glass.
"It seems the frequency of the ship is also changing."
The show is normally weekly, however the frequency can change, especially during special events.