High Speed GMSK Modem 4k to 64kbps
10
10-1
MX589
10-2
10-3
BER
10-4
MX589 BT = 0.3
BT = 1.0 (Theoretical)
10-5
MX589 BT = 0.5
10-6
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
S/N (dB) [Noise Bandwidth = Bit Rate]
Figure 6: Typical Bit-Error-Rate Performance
4.2.6 Rx Signal Quality
The effect of input Rx Signal quality on the Rx S/N output is shown in Figure 7.
% High Time
100
90
BT = 0.5
80
70
60
BT = 0.3
50
40
30
20
10
0
5
6
7
8
9
10
11
12
13
S/N (dB)
Figure 7: Typical Rx S/N Output High time (%) vs. Input S/N
©1998 MX-COM, Inc.
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