Mobile Frequency Range (MHz)

Rx: 869-894

Tx: 824-849

(North America)

Rx: 935-941

Tx: 896-902

(Europe/Asia)

403-470

Rx: 851-869

Tx: 806-824

(North America/Europe)

2400-2483

(Japan)

2470-2499

Multiple Access Method

FDMA

TDMA/FDM

TDMA/FDM

CSMA

Duplex Method

FDD

FDD

FDD

TDD

Number of Channels

832

480

720

FHSS: 79

DSSS: 11

Channel Spacing

30 kHz

12.5 kHz

25 kHz

FHSS: 1 MHz

DSSS: 11 MHz

Modulation

GMSK

(0.5 Gaussian Filter)

GMSK

(0.3 Gaussian Filter)

FSK

(2 and 4 level)

FHSS: GFSK

(0.5 Gaussian Filter)

DSSS: DBPSK (1/MB/s)

DQPSK (2MB/s)

Channel Bit Rate

19.2 kb/s

8 kb/s

19.2 kb/s

1 or 2 MB/s