The radio band spanning frequencies from 2 to 8 gigahertz. The Apollo spacecraft used the S-band for long-range communications via the MSFN.
The frequency interval from 2 to 4 GHz.
A band of radio frequencies extending from 1550 to 5200 M Hz.
A range of microwave radio frequencies in the neighborhood of 2 to 4 GHz, used for communicating with piloted space missions (~2 Ghz).
The frequency spectrum near 2 GHz used for land based microwave and some mobile satellite communications.
The frequency range between 1.55-2.5 GHz, also known as the 2.5 GHz band. Typically used for DBS (community reception). Not in common use.