Type

Year

Rate (Kbps)

Range (Km)

Bandwidth (KHz)

FSK

1984

1.2

3s

5

FSK

1997

0.6 - 2.4

10d - 5s

5

DPSK

1997

20

1d

10

QPSK

1998

1.67 - 6.7

4d - 2s

2 - 10

16-QAM

2001

40

0.3s

10

8-PSK

2010

120

0.62d

80