This doubled the number of channels available across the entire 450-470 MHz band.

Availability and use of frequencies in the 421-430 MHz band.

Selection and assignment of frequencies in the 421-430 MHz band.

Channels available for nationwide systems in the 220-222 MHz band.

Individual channels available for assignment in the 220-222 MHz band.

Other channels available for non-nationwide systems in the 220-222 MHz band.

The 800 MHz band supports use by commercial and public safety users.

It addressed a proposal to open the 800 MHz band.

The ground station communicated with the satellites in the 136-137 MHz band.

A few others use the 850, 900 and 1,900 MHz bands.